Leaf Spring HELP...1970 DUSTER

As I have said in other threads everytime I work on the car something else happens..like :banghead:
well now I need new leaf springs...seems I have two broken leafs in one...and one in the other...
here is whats is needed to know to help me..I have a 1970 DUTSER and I'm putting competition engineerings slide a link for traction...more HP need traction...also running 27in tall tires so the wheel well is up in air to clear...
SO....what I need to know if anyone else is using this traction aid and what type of leaf springs do you recomend...and shocks...so the whole nine yards....hopefully this is the last of my problems...yeah...

thanks guys
wayne