[gjbingham]

XJ,
The thought of picking it up with a forklift scares me. Have you ever seen big trucks on the freeway carrying long concrete girders intended for bridges (I assume). Those babies flex and sway as the trucks bump on down the highway.

Concrete is a very strong material but does have some flexure. I have no idea what the numbers are and whether there would actually be significant flexure between the relatively short span between the forks on a forklift. In my head, I can imagine mortar joints popping when you picked up the oven. Then again, it might pose no problem at all.

If I was going to build a mobile oven, it would be permanently attached to a dedicated trailer and leave it on there.