RE: P 51 D Mustang Panel lines and rivets
One of the best books i have and have come across on the Mustang is from AJ Press, is from their modelmania series and these books are designed and written for modellers. it has about 80 pages full of high quality detail pictures on just the mustang, the 10 pages of three views are excellent quality.
Once you see what the likes of AJ Press and Kagero have in terms of detailed books on aircraft, you'll be throwing away you squadron signal books. This will solve heaps of your questions regarding the Mustang.
anyway, the ISBN is: 83-7237-163-6