Cut springs, home made wide wheels, twin antiroll bars, cut down bump stops, self reset leaf springs, softer rear leaves, re drilled crossmembers, cutting longer threads so we could run more castor ............. back in my day we did all these naughty things, how did we survive??????????
Seriously, you need to step back and look at just how much a 50mm drop in ride height is going to make to the suspension angles. There will be bugger all difference.