The major problem you'll find will be to adapt the whole structure in order to fit the NEMA 17 size motors: it's designed to use NEMA 14, so many parts must be changed, depending on the version you want to build.
All the other parts are easy to adapt: belts can be up to 6mm (either T5, T2.5, GT2, or whatever, depending on your pulleys), hotend mount require only a different RP part (see the
J-Head mount by wooz), and Printrboard electronics is small enough to fit inside the base frame.