For that price i would be wanting the torsion bars included $ 485 extra for them pffff look on flea bay get some extended shackles and shockies and wind your torsion bars up you might need a ball joint flip and a diff drop for your cv angles. Plenty of info on this site how to do it you just have to look.
Leaf springs do cost more but that is still over the top. 485 for torsions I bought ironmans for half that and you only need them if you have a heavy bullbar and winch (a lot of people will say you still dont need them so see how it goes)
Sanding your knuckles before starting work can help. That way you cant skin them