Thanks guys, brand new tub was $400, of eBay the bloke had 2, Danny if you find one close to Melbourne I'd be happy to help pick one up for you, you can leave it here until you have time to get it. Also try the dealership heaps of people putting trays on they might be able to match you up with a new buyer so you can do a deal.
Try getting a spacecab for a bit extra length.