I just slather pieces with a profuse amount of motor oil. The only things that are changing is the con rod assembly, the bore and piston don't need to break in, etc.
There's an old mechanic guru I know who can prove how much a difference it makes to work oil into the surface of metal pieces, it makes a huge difference when there's oil permeating it. Should be plenty of lube for the first start up. It's not like I'm going to be revving it up much for the first hour or two of run time anyway. This method worked fine on the Hothead.