I'm pretty sure that most standard parts will fit, my NP28 has regular grips on it from a 1911, but I don't know if a one peice grip would fit. better to used 2 peice thin grips anyway, a lot easier to hold. If I had another 1911 I would compare sizes, but I'm hazarding a guess that the widebody grip is the main difference and that the rest of the parts are the same. Looking at my np28 though, the parts that look like they may be longer are the mag release assembly, mainspring housing pin, and the beavertail safety(maybe wider), pretty much anything going through the larger grip.
hope that helps