I've looked at several thousand welding rigs over the years, some I like and a lot I'd do different.
But in the end, if a man has the drive and fortitude to buy a truck, build a bed out in the back yard, throw a machine on the back and venture out to feed the family dragging a welding rig around the country, he gets a certain amount of respect from me. Union or non union, mainline pipeline construction to welding on junk iron, If'n you've got the gumption to take the risk and get out there amungst us and "get it" however you can, then I say atta boy. I may make my bed completely different, but that's me, your truck is your truck so more power to you if you're out hustling and making it in a somewhat harsh work enviroment.
Not everybody will pack up and drive a thousand miles to take a welding test, with their last few hundred dollar bills in their pocket ; )
That's my take on welding beds.
JTMcC.