I'd be worried about the actual strength of that "greenhouse", as it's designed for wind & weather, not the weight & strength of a large pushy constrictor- and the glass is only 1/8"- I wouldn't trust it, personally- at least not without seeing & testing it in person, but probably not even then. A greenhouse is not designed for a soft-bodied & climbing animal occupant- I think a large snake will test the structure in ways (forces) for which it was never designed- I think it's also likely to have sharp edges here & there on which an actively-exploring snake might get cuts. I think a build-from-scratch (by handyman, if needed) would be a safer option for that much money. Or at least, I'd be using that as an example & get some estimates & more ideas about materials to use. Personally, I wouldn't rush into buying that for the purpose you have in mind. Just my 2 cents.