Is this in the US? I'm not sure where you find them but Christmas tree bins are supposed to be big!
Or there's a detolf! $60 and 163cm long - you just need to make two lids with 2 x 4 pieces of wood, some 1cm mesh and a stapler.
DETOLF Glass-door cabinet - IKEA
https://www.google.co.uk/search?q=ha...IVwRUPCh1d4gIN
Or - if you can spend $99 there's a very good Syrian sized cage available - the Marchioro Goran. It's classed as a rat cage, but bar spacing is fine at about 1cm and the rat tube it comes with is great for a syrian - means they don't get stuck or block it up with food or nesting material. It's about the biggest cage you can get in the US, has a really nice large front opening door, so excellent access. Virtual Keith has one for his Syrian and he has a great set up in it after buying some small extra shelves. Have linked his thread so you can see it.
http://www.drsfostersmith.com/produc...m?pcatid=25921
Mr. Carlisle's Thread
I'd say - get a detolf if you have the space - if not, get the Goran cage - it's a great habitat for a Syrian and nice and spacious at 32.25 inches wide and 20 inches deep which is 645 square inches - it will be a bit less as those are maximum measurements and the base curves in a bit, but it is still an excellent size and not too high like a lot of rat cages.
If it's not affordable then the Christmas tree plastic bins might be good.