You should be able to install two 32 MB SIMMs without any hacking. The 32MB SIMMs need to be two-bank SIMMs. That means that they have two sets of 16MB memory on-board, which share data and address lines and use different pairs of RAS lines. If they are single-bank 32MB SIMMs they won't work. I've never seen a single bank 32 MB SIMM, but they could exist.

Your two-bank 32MB SIMM should, typically, consist of 16 memory chips, each 4M X 4. Eight of them form one bank as 4M X 32 bits. The other eight form the other 4M X 32 bits. 32 bits = 4 bytes, so each bank is 4M X 4bytes = 16MB and with two banks on a SIMM, you get 32 MB.

If your 32 MB SIMMs are made out of eight 8M X 4 memory chips, then you might have a single bank 8M X 32 SIMM.

You can discover what kind of memroy chips your SIMMs have by reading the part number off of the memory chips and looking for a datasheet for them on-line -- usually at datasheetarchive.com. Manufacturers usually don't have datasheets that old available any more.

If you want, I can send you a pair of 32MB SIMMs that should work. If they work, you can send me $10. If they don't work, send them back. PM me if you would like to to do that, but it sounds like you have a lot of 72 pin memory on hand already.