Hi John!

It depends somewhat on how much you're willing to spend, as usual.

They are quite a popular item in general, especially the ones fabbed out of aluminum diamond plate. There are serious lifetime quality units made by very reputable major manufacturers. Then there are countless knock-offs in varying ranges of quality, right down to bonafide junk, made in Foo Chi Whang Dow.

If you want top notch stuff they're pricey, if medium quality not too bad, and then of course junk is junk at any price. How much have you budgeted? I'd think aluminum is the only choice for you, considering shipping.

Another thought if you have a MIG or are very good with Gas or TIG is to have someone ship you some diamond plate, but it's available there too I'm sure.