Ok,
Get EB Falcon REAR KING springs "Lows"
Get new standard shocks for the front.
Cut the falcon springs down, put the new shocks in. you will have a VERY stiff front end.
Then in the rear get Suzuki Sierra Front shocks, they have very little travel and bolt right into your 55.
Then get your leafs flipped.
whiteline sway bar for the front.
and a KE70 rear sway bar welded into the rear of your 55.
this is what I have and its sick.