New Build | Need help with parts some parts

Hi, so I decided to build my own eletric skateboard, keep in mind that the objective of this build is to do it the cheapest possible.
Ive been reading about it for 2 ou 3 mounths now but i still have some questions, these are some of the components that I'm willing to buy, and i want to know if they will work.


ESC - https://hobbyking.com/pt_pt/hobbykingr-x-car-120a-brushless-car-esc-sensored-sensorless.html

Motor - http://www.ebay.co.uk/itm/Brushless-Outrunner-Motor-N5065-320KV-1820W-For-DIY-Electric-Skate-Board-Kit-Set-/232188566871?hash=item360f845d57:g:3MIAAOSwZQRYY40T

Mounts and pulleys - http://www.ebay.co.uk/itm/For-72-70MM-Wheels-DIY-Electric-Skateboard-Kit-Parts-Pulleys-And-Motor-Mount-New-/381842352015?hash=item58e793e78f:g:blEAAOSwKOJYIaXl

Batteries (2x) 25c - https://hobbyking.com/pt_pt/b-grade-5000mah-3s-25c-lipoly-battery.html

I still need the transmiter, I want something small, that can fit in my pocket.
Something like this.
http://www.ebay.co.uk/itm/2-4GHz-Radio-Remote-Controller-w-Receiver-Binding-Plug-for-Electric-Skateboard-/282308062650?hash=item41badf2dba:g:zVAAAOSwo4pYZhOk

The total is about 150€, + board! No shippings.

If there are some erros, i'm sorry, i'm portuguese!
Help apreciated, thanks.