As others have said keep the chunks small so you can always drive the truck. I pulled the front clip several times to repair my floor on the weekends as my truck is a daily driver. The hard part is dealing with setbacks. When I was almost done with sheetmetal repair the 46k mile original motor blew up. Not long after I got the truck repainted I noticed that the rear leaf springs bent. That one sucked because I replaced those right after I bought the truck. They made it a whole 10 months. When I make that repair some sort of traction device will need to be added. Probably Caltracs. Unfortunatly these trucks are 40 years old so little things will always pop up. Having an other half that supports your craziness is the biggest hurdle. Especially when you take a three week vacation and spend it sandblasting, painting, and rewiring a truck
For a final that sucks, after all that work I broke a rocker arm on the new motor on the 300 mile trip home from the rebuild. I put a push rod straight through a rocker arm due to a manufacturing problem. Even tore up a valve! Enjoy your hobby and keep a picture of what you started with handy