The one thing the CD32 needs is a fast RAM upgrade. The SX-32 (non pro) is a great upgrade but not particularly affordable, the PRO version is just not worth the money they sell for. The SX-1 sucks in my opinion cos it sticks out the back of the console.
I tried to make some cheap sx32 equivalents last year, but much more simple, just an RGB out and 4Meg RAM.
The price of the edge connectors is extortionate! You also had to have a minimum order of 500.
I just made two using the samples I managed to blag.
If you need RGB you can solder a scart cable directly to the edge connector, drill a small hole through the expansion cover and add cable ties either side to prevent the soldering coming loose when the cable is waggled.
