The same hutch is a tad cheaper if you go direct to the manufacturer rather than via ebay:
http://www.the-rabbit-hutch-shop.co...uinea_pig-hutch-cage-with-long-legs-ghll.html
Just over your budget is the two storey version:
http://www.the-rabbit-hutch-shop.com/6x24-giant-double-decker-rabbit-guinea_pig-hutch-ghgdd.html
I agree with what Janice says re the dimensions - quite misleading. By the time you've allowed for the walls/cladding and the timber framework the floor space is only about 21 inches across.
I also bought one last year and I'm happy with the quality, though the back is plywood which isn't obvious from the description, I was expecting tongue and groove wood at the back.