How Much Bounce From Your Cabover?

Think of something like this. Long piece is bolted to the camper. The bottom piece may not be needed. The green pieces would be some sort of shock absorbing material, like a pool noodle. The spring points would sit roughly behind the clearance lights and as close to the drip rails as possible. Sorry for the bad pics but maybe it'll get the point across and I can get feedback. If it works it would help the sheriff and myself.