@3246251196:
You could just buy one of these fastram-cards for the A1200 which as the accelerators fits in the trapdoor underneath. They are very cheap and will give you 4MB extra if you want to use the PCMCIA-port, otherwise they give 8MB. They usally come equipped with a SIMM-socket as means of adding the memory.
As an added bonus, it will also make your A1200 roughly twice as fast as in an A1200 with only chipram the 020 cpu is rather starwed on memory-cycles.
/Patrik