Thanks Rich. I appreciate you input, but I have to set a line some where... Same as with the brakes. For now a drum at rear, if it does not meet my standards I simply can go for 944 discs after the bus is finished.
The oil pressure in the shock mount is already adjustable and I 'm not building my bus for the racetrack. The suspension will be a lot better as with the torsion bars. It 'll do I guess.

Luuk