
I am currently designing a 32-bit wide memory board using 100ns 1 meg DRAM's. Unless your doing alot of floating point stuff, the Lucas board won't give you miracles. If your LUCAS board is running at 20 Meg. (this is the configuration I know best) than you can expect a 35% - 40% speed increase across the board. The whole point of putting the 020 in your Amiga is to one,  give you a 32 bit wide upgrade path, and two, the 256 byte instruction cashe sure helps. If you connect 32 bit wide memory to the LUCAS board you will get about 200% speed increase. Ofcourse floating point stuff, if it uses the 68881 will indeed appear miraculous. 
If anyone also wants to have a go at a memory board the expansion connector is documented in the drawings and in the PCAD documents. If you have access to fast SRAM an SRAM board with no wait states would sure fly.
Once I get a good memory board layout I'll make the bare board available as cheaply as I can, but don't let that stop anyone from doing one also.
