For handling purposes, a good rule of thumb is that the outer front lca pivot point shouldn't be any higher than the inner one. Any higher (i.e., car lower) and the camber curve, which is none too good to begin with, goes all to hell and camber starts going more positive as the wheel moves up on compression.
BTW, one real benefit of coil overs is that you can adjust corner weights for more predictable handling. Try a little search.
Mustang - The Great American Kit Car
#50 ESP/SM2 (backup) - Cal Club
Porsche - The Great German Kit Car - #50 SM2 Cal Club - #84 JP PCA