My Paragon is about the same size and weight as a BOT.  I used an E-Flite Power-25 outrunner with a Phoenix -45 ESC and a 10 X 7 folding prop.  I get several climb outs on a single charge with a Lipo battery.

A BOT and a Paragon are a lot alike in flying characteristics in that they're both floaters and will only benefit from the weight of the electric power system.