Can I replace self-levellg with dry shocks?

[stumbler]

I've been told i can simply by-pass the self-levelling system by routeing the oil from the pump back onto itself, and then replacing the hydraulic shocks with dry ones.
however, ordinary w124 dry shocks are too long, so i am wondering, has anyone done this and know exactly which shock i should be using to replace teh original?

thanks as always

stumbler