On another server, there were craft-able Vehicle Upgrade Kits. These kits would make any vehicle of your choosing, top speed and handling etc. So, that being said, you could utilize one of these on your desert skiff, and suddenly, you have a speedy transport for 8 players that is also lava proof. Perhaps this could be put into the craft tables for whichever trader it makes most sense for. I would argue droid engineer or structure trader? I think it would be a very sought after item in the economy.