Re:Anchoring equipment in truck or trailer
For my big 5' wide range, I welded four 6" tall stands together to replace the legs. They look like dice with the two vertical faces under the stove missing. The stands are bolted to the bottom of the stove and bolted through the floor with grade 8 bolts.
For something like a stainless table with 1 1/2" legs, you could take off the leveler feet and weld a nut inside the leg, then come up through the floor with a bolt to fit that nut.
I also use ratchet straps and eyebolts for my two fridges and some things are held with bungees. Eventually, everything will have its perfect place and I'll secure more permanently. That will save a lot of time in setup and takedown.