Nice and simple - my favorite type of stand! I like the idea of stakes thru the bottom panel to stick it into the ground - bigger engine, bigger stakes...

The engine mounting scheme appears to use the slotted holes to install almost any standard engine mount?

If you plan to put bricks on the bottom panel, I'd use 3/16 or 1/4 inch thick plywood... 1/8 might puncture a bit easily.

Using aluminum diagonal side straps instead of steel would not require painting to keep from rusting (a smidge lighter, too ).. Would also think about using aluminum cross bracing instead of the plywood on the front panel to allow prop blast to flow thru better...

I'd add a carrying handle across the vertical beams, but I'm just lazy.... In fact, if you put a carrying handle across the top, you could get rid of the front stiffening panel altogether.

Be sure to post the results!

Cheers!

Jim