Sorry, I've been gone on a trip.
Well, this is going to piss a lot of people off, but you are getting a lot of info that is off the original idea and I would suggest you dis-regard everything you have been told since my last post.
I've been looking at how to make your order and the problem is, BMS Batt. has recently dropped more than half of the Q128 variants from their line up. And as usual, their product info is often mis-leading or/and confusing.
Perhaps I wasn't clear, but as I stated, all the components are NOT going to simply plug together and you are going to need to do some soldering of connectors, but this is no big deal and we can work that out once all the right components are ordered and received.
Let's start w/ the motor;
I think you want the Q128 C already built in the 700cc whl.
The C because this will accept your 11T sm gear cassette. If you buy the free wheel variant, you will then need to buy the Enoch DNP free wheel, which shipped to where you are is going to be over $50 US. It has to be the DNP because that is the only one that comes w/ the 11T sm. gear and you have to have that if you want to pedal along over 20 mph.
I am recommending the prebuilt wheel so you don't have to order a rim and the CORRECT spokes. It may a little more in freight, but you won't get the spokes wrong and you won't have to pay a shop to build the wheel.
The only Q128 C built in a wheel that BMS Battery now lists is this one;
https://bmsbattery.com/ebike-kit/769-16768-q128c-135mm-500w-rear-driving-ebike-hub-motor-wheel-ebike-kit.html#/43-voltage-48v/214-rpm-328
BUT, it is listed as a 48 V motor and the only speeds are 201 and 328. This really confusing because they do not tell us what the reduction ratios are or if the speed ranges are measured @ 48 Volts, which messes everything up because they cannot be directly compared to all the other variants that are rated @ 36 Volts?! Well, I have been dealing w/ BMS Battery long enough to strongly suspect that they just took the 36 V rated motor and for some reason those of us in the West can never understand, listed it as a 48 V motor. If it was truely a 201 rpm motor rated @ 48 Volts, that would be something like a 140 rpm motor if measured @ 36 Volts! Something that has never existed! You could press them on this, but don't expect a sensible answer. You will be talking with them several times, just to make sure that you get the correct items and to get real product info from their sales persons is a challenge. I have already told you this when I said the parts will not be intergreated as well as if you ordered from Em3ev. If you want your ebike stuff as a kit, then order everything from them(or possibly MXUS), they will make sure everything is right and plugs together and pay the extra $$$$!
Ok, if you are still w/ me here, this is what else you need to order from BMS Battery;
spoke wrench
hidden brake sensor
2) torque arms
left-hand, half-twist throttle
Now, from PWS Power;
the battery you originally listed
This controller;
http://www.pswpower.com/ven.php?cargo.2016-3f-3vm4
This IS the RIGHT controller for the Q128.
It is a simple square wave because the sine wave will cost you more and I'm trying to keep this project close to your intended (and modest) budget.
Get the 890 LED display and the PAS stuff.
The headlite is cheap and built cheap, so that is up to you.
Most people don't like the brk. levers, so that is why I susggested the hidden brk. sensors from BMS B. They will allow you to keep your bike's levers.
This controller is a little "soft" (low power) for the Q128, but it can easily be modified up to 23 Amps and you don't need a lot of power (which will drain your batt. faster) to do what you want to do.
If you decide to continues this build from these sources, you need to have the vendors confirm the parts number in an Email. Make them repeate them in writing!
You can make lists of your parts in the order forms and get a shipping quote w/out actually completing the order. This will give you an idea of how you are doing w/ the budget. I have no idea, but if I were to guess, I would say you are already over.
If you still want to proceed this way, let me know and we can start to cover when (and how) the orders will arrive and how to put everything together.
But it would be helpful if you payed attention to what I tell you so I don't have to repeate things(Sorry if I sound grumpy, it's just I have been doing this so long, my patience is wearing thin, and I AM old and grumpy
