This is alot of work and may (or may not) be required for the "look" you want. Doing a full on Pro Street makeover would involve all of the changes you listed above but, if you just want to put some larger tires under the truck with a little lowering, that can be done without too much of a tear-up. You need to decide what you want and go from there. A little measuring and figuring will go a long way to determining what would need to be done to fit your tires and wheels of choice.
Check out this site for some info and a little guidance...
http://www.cachassisworks.com/cac_how_to.html

This is a calculator you can save to help determine how much room you have for tires and wheels. It works fairly well and it will get you familiar with your front and rear suspensions.
http://webrodder.com/calculators/Hub-Wheel-Tire.xls
Let us know exactly what you want and we can help a little more...
Mark