Hi mate,
I'm in a similar boat to you, having also recently bought a '93 LS.
I have a very slight power steering leak, so I'm encouraged that the likely cause is just an O ring. Does anyone have the part number for the replacement? Is it an easy enough job for a DIYer?
Since I acquired mine I have:
Replaced my bonnet struts (I bought mine from a Chinese eBay seller, as he was the only person I could find who sold struts for a decent price with the correct fixings already attached, as I didn't fancy the hassle of cutting the ball joints apart to fit generic struts)
Replaced my climate control/clock LCD (a bit of a daunting task for only my second ever attempt at soldering, but I did it and I'm pleased with the result. I got the LCD from the states. Let me know if you want the details)
Fixed the fuel guage reading incorrectly (replacing a couple of capacitors on the instrument panel PCB)
Fixed the half-lit needles problem on my fuel & speedo dials (quite a fiddly fix involving super glue and conductive paint/glue!)
Fixed a 'sticky' dials issue on my speedo & tacho (they'd stick at zero for a few minutes after startup, again a fiddly fix!)
Cleared an airbag warning light
Patched up my 'grotty flanges' in my exhaust cats
Replaced an electric window switch
Refurbed the rear door open/closed sensors
Replaced a few interior bulbs, including the glove box light (I used LEDs but other people here have had bad experiences using LEDs so beware. Mine on the other hand have been fine)
...and finally... I'm part way through getting a leaky air con pipe fixed (well, I've removed it from the car, and need to find someone that'll patch it up!)
Out of interest, how much are the wheels you're looking at on eBay?