[plumthicket]

Built a "temporary" workbench of douglas fir about 20 years ago, I'm still using it. I made a quick vise of 3/4" pipe clamps, I still use it for clamping odd shaped pieces. Learned to use the jack plane, winding sticks, and smoothing plane flattening the top. If you want to make it mobile, I suggest casters with cam-type lifts so you can set it solidly on the floor for working. It's probably not possible to make a workbench too heavy. There's a lot to be learned by building your own bench, a very satisfying project.

 

[plumthicket]

Lockable casters are ok, but when I chop dovetails I position my work directly over the 4x4 leg of my bench. that way, the shock of the mallet is transfered to the floor with each blow. I can feel the difference if I'm even 6" away from the leg. I prefer the 4" square leg to be on the solid floor rather than the relatively small footprint of the caster. Love your creative spelling, adds character to the message.