Local yami dealer, "OJ" has the sky-hi deck. Its been on a ford dually since 02, not the same truck thou, upgraded over the years. But it seen many a trip from Ab to Bc, & haul lots of yamis, so you know it can take the weight.
I also run one. Picked one up about 3 years ago used. I wouldn't think twice about getting another if i had to very nice deck. Easy to move in and out of the truck 10min and i have mine bolted into the box.