headliner...remove the trim panels first, (the long metal piece at the top of the windshield, the a pillar trim panels, and the b pillar panels) remove the sunvisors and the clips, then take the lens out of the maplight and remove the 3 screws holding it in. The headliner may have a small amount of adhesive in the corners holding it in. be careful at removing the adhesive so that you don't crease the headliner. but thats it. you will only need a phillips screwdriver and a t50 for the seat belts to remove the headliner.
dashboard...a little more difficult. remove the glovebox and all of the lose trim pieces that you can without much effort (the lower a pillar trim, the knee bolster under the steering wheel). you will probably need to lower the steering column to take the dash out. it should be 4 bolts and then the column will lay on the floor of the truck all of the rest should be an 8, 10, or 12mm socket to remove the dash. there should be a few bolts along the windshield line, a couple on each side, and there should be some behind the radio bezel (the radio bezel just pulls out)