I used to have an Omega B66xl crammed into the hall closet in my college apartment (I took out all the shelves). Next door was the bathroom where I had my developer trays. I'd hang heavy drapes over the hall entrance and I had an instant darkroom. It was less than comfortable but it worked! A B66 should be cheap; I sold mine for $75 including the lenses. I don't know how easy that enlarger is to find these days, but I see parts for them regularly. It was solid enough, not like the Omega D2 I use now but it was fine.