I've seen some interesting mods for the MXL 2001 and some others. I have an original 2001 and have been thinking about getting a MOD kit for it. I'll be interested to see more of what you are doing and how it turns out. A ground up kit is really interesting. That is hw I learned to build simple Fender Tweed amp clones. I bought a kit then went from that to building from parts. I still have trouble if I try to go straight from a schematic, a wiring diagram really helps me. I am excited for you Mike...
Julien