E-Bike System

[Ola]

Read some about the magic pie, but alot o q`s raise in my head :(

Should i aim for MP III with internal controller, or MP II with a lyen controller?

I was thinking about using my 5s 5000mah nanotech 45c batteries for this. I`ve got 4 of them, so i can run 42v 10Ah if that`s an option?

And i`m happy with 25-30mph, if i can get it to do uphill kinda strong.
Problem is, i have no idea what 1-2000w will do to a bike uphill, and i cant find videos to compare.

I`m not expecting 30mph in a 10% uphill ofcourse, but i`m hoping it will do a decent job without pedal assist. Say, faster than i would do it manually atleast :)

Would a standard MP III kit do these thing for me, or will it feel week on power?
And kan a 42v battery be used with this kit?