If you are not planning on hauling anything in it - you could look to do what my neighbor did to his last "toy" ('72 F-100 short box).
He disassembled the rear leaf packs, cut the back half off of every leaf but the main leaf, then reassembled. He also took a set of used swap meet slapper/traction bars that were supposed to have been from a Mustang? (but any with the right bolt spacing would work) - cut them in the middle - picked up some scrap box tubing from the local scrap yard that fit inside the original square tubing and used that to extend the bars so that the snubber hit directly on the front loop of the spring where the mounting bolt goes through.
I rode in that truck a number of times after that modification and the weight transfer and hook that he would get with that truck was impressive!
The engine wasn't anything radical - 429 out of a '69 Lincoln that had a mild Blue Racer 268? cam in it with Torker intake, Holley 750 and headers (he had to mixed CAM2 with 92 for fuel to keep it happy though) - but boy, that truck would squat, hook and go! Surprised a number of people - myself included - just how well that set up worked and how quick that truck would move out!
Definitely inexpensive to set up and easy to work on.