Just finished raptor lining the bottom half.
Started the job because of rust around wheels wells. If you have not removed your fenders run out and do it before the body rusts beneth them. I put it off for years and regretted it.
Lots of advice on Mud so won’t expand.
Only other thought is I would think twice about lining the inside of the car. Fumes may be a bit much.
Just need some bumpers now.