Atari ST Help

I have my original Atari ST 512 still... It's been a trouper and I'd like to use it again.. So, I'm looking for help with the following: 1. It has an AERCO Easie-ST Ram upgrade board in it, that is no longer recognized. This board will use 1mb x 8 chips to take the system to 4mb (which is max for this machine). I lost my manual, and it isn't working anymore. I know it's a long shot, but does anyone have the manual for this, or can point me to where I can get a RAM upgrade for this old machine? 2. I'd like to throw an 80mb SCSI External drive I have on it, so I'm looking for a SCSI Adapter for an ST. $100 + s/h for a new(?) one from one of the remaining dealers is a bit steep... Does anyone know of a cheaper source for one, or have an old Atari Drive with a bad mechanism I can buy to salvage the adapter? Regards, Al Hartman P.S.: I have a paper tray for an HP IIIp printer (but not the actual mechanism to use it) if someone is still looking for one.