Wanting to gut MR Anakin

I'm considering swapping out the electronics in my Anakin for some with better sound, and that can handle a rb/B/W LED, and I have some questions.

First, does anyone know if either of the pre-wired NBv4 Assemblies will work in that hilt? I'm not great at soldering, so if one of them would work, that would be awesome. If not, what have you guys used as a chassis?

Second, will any of the activation boxes from TCSS work for this hilt? I kind of mangled the original when I converted it to an LED saber, and I'd also like to have a momentary switch instead of latching.

Thanks in advance for any help.