This is a "good" idea, but there are MUCH cleaner ways to do it for a A1200.
Like This:
http://www.amiga.org/gallery/index.php?n=1201This is my A4000 mobo...
They also make them in 44 pin versions so they would be PERFECT for the A1200 or A600.
Now getting your hands on one is a different story...
Do a google search around and see if you can find a seller, I got mine trough a friend who works for simple tech... :-D
J-Golden
PS- this one has MUCH faster read write speeds then the E-bay listing...