I don't know how mechanical incline you are, as that makes a difference on decision. I am on my 5th build since Aug,2011. I started out on a simple 5 minute conversion kit, really took about 30-40 minutes because I had to open up the dropouts for the fatter axle. It's a 24v 250 watt bafung powered by Clean Republic. kit has everything needed. It came with sla batteries, which is cool, as I was not unable to get Life or Lipo at the time.This went 17mph with pedaling and 15 no pedal, because of the batteries it had about 6 mile range. I got another sla battery making it into the 20's pedaling and about 17 no pedaling, on 36v. around October I got Life 40v 4.5a batteries, lost about 10 to 15 pounds of weight and it flies. this was all put on an old Motobecane road bike frame, everything stillstock except the batteries.http://www.electric-bike-kit.com/
since then I gotten 2 Ebikekit.com motors and also a yesusacom kit. and building a 5th, maybe a 9c or another yesusacom kit.
Also don't know if you have to carry your bike down some stairs, but the Yesusacom bike is heavy, needed to be almost a he-man. the other 3 are light, maybe 15 pounds more than stock. the bafung is light duty motor so don't expect direct drive performance, but it is stealth, can hardly hear it and with the exception of my exposed wires, you will never know its electric. This is the one I use mostly, especially on my club rides, people are always asking about the front hub, thinking it is a drum brake or a dynamo hub.My 12s2p battery sits in my blackburb bag ontop of my blackburn rack. Best of all it's light. good luck on your choice.............Jerry
Motobecane ..bafang front driver.. 42v
24" girls bike ..ebikekit 20" fwd..75v
24" Schweinn 9c 20"rwd 75v
26" Schweinn Yescomusa 48v 800watt dd
Easy Racer clone LWB.....24" rear e-bikekit 48v ..ready for testing
Hooligan clone , longer rear chain stay.. twin 20"...
fun bike...twin 16" wheels. small rear motor... ready for testing
convert my CLWB recumbent to a front bafung@48v..ongoing