I have limited space so I plan to use the original chassis. Planning to swap front to a mustang 2 ifs (but I’m not sure if they make that for a 1 ton, they specifically note it’s for 1/2 & 3/4 only) and I bought an 87 2wd s-10 rear to link to a 4 link coil over. Lots of time, not a lot of space!