Advice on budget a/body bracket car suspension?

I agree with using the old direct connection "bibles", it worked then, it'll work now.
Slant 6 torsion bars are easy to find here maybe not in Australia, but here they are give aways.
Personally, i would go with SS springs and a snubber, slant 6 torsion bars and weak shocks on the front end, but i'm old school anyway, i don't do it for a living. Only for fun. I've seen cars set up this way and man do they lift and plant the rears big time.
Good luck to you and let us know how it goes.
Tom.