Kevin,
I have been asked about installing one of your remote kits inside a preamp. I had a look at the kit at RMAF and it seems nicely done. Can you provide the dimensions of the board so I can determine how much room will be needed and thus if this is feasible?
The board wasn't very large if I remember correctly but dimensions would be great. I looked at your site but didn't find this information. Looking at the pictures and going from memory I'd guess it's about 1.5 x 4 inches.
Thanks,
Mike