I have a 'traditional' style coffin made by this company (
http://www.cases.com.au) that I don't really use that much. It's definitely no Road Ready in terms of build quality, but does the job. I think they're just under 300 new, I would probably part with mine for 200.
My honest advice however, is that if you actually want to transport the gear, coffins are fucked. It is a cunt for 2 people to move, so if you're ever on your own you are no better off... a few times I've had to do the old take everything out of coffin, put empty coffin in car, load items back into coffin. You're much better off with individual cases for that shit. I just use mine when I need to get the decks up off a low table to save my back.
But uh, if you don't care about that, buy my shitty coffin

PM me if you happen to actually be keen 'cos I don't get on here all that often.