67 c10 3/4 ton in need of ????

i was wondering how much i should charge to lay it out? just labor? and will it lay frame on 20s in the rear with stock link with bags were the springs are.... what all needs to be done to the frame to lay it out with 20s. its just a roller no body at the moment. she just it to lay out... thank you anything will help

You can add a 73-87 1/2 ton front x member up front to make it a 5 bolt with disc brakes fairly cheap if you have halfway to decent bartering skills for the parts from a wrecker. A set of drop spindles and air springs along with  a 3 inch z will get the front laying out from there. As far as keeping the rear trailing arms and laying out you will need a healthy size frame notch and a serious rebuild on the front mounting x member to make it happen. You will also find that the short factory panhard bar will pull the diff to one side a good amount. There will also be a fairly large pinion angle change with the stock trailing arms. You will probably be happier with a 4 link over the stock parts in the end. I would start with a 73-87 1/2 ton rear axle (it's 5 bolt) and then begin looking at link options from there. A paralell 4 link with a long panhard or a watts link is a good fit on the fairly narrow chevy frame. A pair of sleeve bags will give you a pretty nice ride on the rear if you are looking to stay simple on bag mounting. As far as pricing goes I wouldn't even know where to start for you. Kinda depends on your tools, experience, overhead costs etc. You will have to take all of that into consideration and come up with a number both sides can live with. Good luck on it man.