Greetings,
Hello Grue, I have exact the same model on my A1200 right now, but I only have 32Mb on her and no FPU. I would suggest, keep the ACA as a spare. DKB memory modules are hard to get by these days or try Amigakit. If you still have some spare $$$ you could buy an FPU for the old DKB! Pretty nice too, specially for Emulations which require it or FPS games like Genetic Species.

Regards,
GiZz72