I used a panel mounted EATON Bussmann Series 15713-24-12-22A ATC Fuse Block with rear terminals. 24 circuits on three separate busses (12, 4, and 8 circuits) makes it handy for normal, emergency, and avionics buss assignment. That series goes up to 32 circuits as the largest unit. Looks nice as a panel mounted unit for easy access to check the fuse state (lights up when open).
I usually use Wytek Wire for sourcing circuit protection and contactors. Also a good source for automotive style sealed circuit connectors for the wiring harness if you ever need to disconnect a component.
John Salak
RV-12 N896HS