Welcome to the madness.
Love tan interiors. 5 speed has nice overdrive so it lopes along on the freeway instead of revving at 3k when you are doing 65 (4 speed stick!). I threw a 3.4 DOHC behind mine, BIG engine and heavy but great fun. Most popular swap seems to be the 3800 SC.
Only down side to the 88 I can think of is are the front wheel hubs which are getting rare so for me, if I saw a pair i good condition/new I'd probably grab them 'just in case'. 88's do drive nice though in stock form and the stock brakes work much better than the earlier years (assuming all in good condition).
Fixed your url to pics http://i96.photobucket.com/...nbt3ldw.jpg~original
anyway, have fun and start saving those $$, you'll need them LOL!
Anything I might say is probably worth what you paid for it, so treat it accordingly!