It's not an aluminum intake. Doubt I would do it with that. Pulled lots of engines with the tranny without issue and do not need the load leveller if you can believe it. The balance is almost perfect in that picking up the tranny end is easy and quicker by hand. Never required a second man to take out or put in a engine.
I think the key is the plate must be thick (prevents bolts from bending - shear force) and the bolts (strong) must occupy 98% of the hole (not tight against the bottom.) If you cannot bend the bolt then it cannot break. Steel greatest strength is tension along it's longest dimension.
