apple II - SCORE!

OK, I just got my first decent item since I stopped collecting several years ago. This is an original apple II, serial number 7833. It came with what appears to be the Microsoft basic language card. The card contains six 24 pin sockets, five filled by PROMs (C48040; each with an APPLE 1978 sticker), a red switch on the back, and another sticker on the board's surface reading: 851. Just below that sticker printed on the card it says ROM CARD 600. There's also a disk II interface card, circa '78, but the drive itself was unavailable. Could someone verify if that card *is* the Integer BASIC replacement, or Microsoft BASIC? The motherboard is functional, video works just fine, it seems filled out with 48K of that old Military grade metal topped RAM; obviously the PSU is good. The keyboard is a mess, hoewver. It's been sitting in a basement for years, so many keys have gummed up; some seem to have been in a perpetual depressed state waiting out obsolesence like Atlas. The machine itself is filthy. The plastic case has just burned in grime from years of use and then even more years of basement ambiance. I'm guessing that some folks here may know a bit more about system restoration. Mind if I ask a few questions? How do I go about cleaning this without destroying the case? Does anyone know of some good solvents or cleaners for plastic? Can I pull a keytop off the keyboard without destroying the key? If it's really bad I guess I could change keyboards - but I'd really like to attempt to get this guy working, as it was the original. And then there's stuff: I lack a floppy disk drive. Hmmm... how rare is hard disk technology that will work with this apple? Hahaha, here's a good one: does anyone know if ever there's been manufactured 10base-T cards, or am I just dreaming here? If so, guess I'll be looking for a SuperSerial card as well. And basic 'dumb' (no time to RTFM quite yet!!) questions: How do I get out of the ROM monitor into BASIC? I guess I need some basic DOCS here as well as a good technical reference, huh?. I figure most of the 'stuff' can be had on comp.sys.apple2.marketplace and the M.I.T. flea fest approaching on July 20. If anyone wishes, however, please feel free to offer items for sale. I want to get this computer clean and *functional*, but I'm also not in a hury to do it tomorrow. ;-) Price: I got it FREE! 8-)) And the guy couldn't imagine why I'd want it!!! J. Maynard Gelinas