Any ideas on a front end rebuild?

[Chevystep]

Yeah, I know how to do it....WITH the engine in and body on, but a buddy has pulled all that and just has a naked frame he's restoring. And he wants to rebuild the front end, so how does he jack stand it up and slowly lower that A frame with the spring in it when there ain't no weight to keep it on the jack stands? He's thinking of putting a chunk of plywood on it and just keep stacking weight on it. FWIW....I told to wait until everything is back on it so the A frame can be slowly lowered with the floor jack until the coil comes out. Ideas?