[Captainfab]

You can raise the engine with a jack under the oil pan. Use a piece of wood between the jack and pan large enough so you don't damage the pan. Then cut a couple pieces of 2x4 and place them between your motor mounts and the frame brackets. That should hold the engine up enough. It also sometimes helps to rotate the engine a little so that the front counterweight is in the up position. This gives you a little added clearance to get the pan out. It seems to me that those one piece gaskets come with little plastic stude, that help hold the gasket to the block.....at least they used to. If not, you could try several pieces of masking tape. But you would want to be able to remover them before you get the pan up against the gasket. You might also try making yourself some studs about 2" long from some all thread. Screw them into the block, slip the gasket over them, and that should help hole the gasket in place until you get the pan up there.