Pro, one of the things that I do love about the MM is it's design from the standpoint of the placement of the components and connections. The thing is just plain easy to work on.

Anyway, I'm using 4 cap banks in all of my conversions now. I used a piece of 1/8" copper tubing and flattened it in a vice. This made for some pretty rigid copper strips. I then soldered the caps to these strips. After taking precautions to avoid a short, I mounted the cap banks into a piece of 1/2" aluminum channel and then encased the caps in home made thermal epoxy. Besure to take not of what is + and what is - before you pour the epoxy.

I use devcon two part epoxy and mix it with aluminum oxide powder. The aluminum oxide effectively turns the epoxy into a thermally conductive block when it hardens. This is a good alternative to Arctic Alumina as it is very inexpensive and you don't feel to badly about having mixed to much.

I then used a couple of short pieces of 12 gauge wire to make the connection from the cap bank to the under side of the pcb on the esc. I soldered the wires from the cap bank directly to the power leads sticking out of the bottom of the pcb on the MM. All I can say is that it works.