well,
sounds like you got a pretty sweet deal! congrats! i'm in somewhat of the same position, but being the oldest of 4 children(i'm 21), and still at home while at school. having enough room in the garage, let alone the house to enlarge is somewhat of a problem. a friend of mine got a rolling cart(i believe from ikea), and put his enlarger on that. the cart was really nice, and was sturdy enough to hold a beseler 4x5 enlarger on it. it had nice big casters so rolling around on wood floors wasn't a problem. it was about 3.5 ft tall, so it allowed him to sit down while he printed, which was nice when extended burning was in order for a print. for developing, he just put a piece of plywood over the bathtub , and put his trays(11x14 or 16x20) on that, and then had a fiber washer in the shower. this was ALL in a studio apt, approximately 450 sq ft. so basically, where there is a will, there is a way!
he would have had everything static except the print washer in the shower, but his g/f, now his wife, lol, didn't like that very much. (she liked bubble baths) =)
best of luck to you though, post some pics once you have everything together!