Sounds to me like you're gonna need to remove the coping, strip the old plaster (you want ~ 3/8" of the Pebble Tek) and you want tile and, as I said, take out a small section of the deck in the deep end so you can install the cover reel and motor. I am assuming that your pool is a rectangle, if not, you'll have to go with a deck mounted auto cover - if you have to go that route, you might not need to replace the coping.

Do you have a ladder or handrail that goes into the pool? If you do, you'll need the ~pricey ladder hinges (I think the hinges cost more than the ladder) - if your handrail mounts in the pool, you'll need a 'figure "4"' rail inastalled (A/K/A dinosaur head rail)

Are you planning on being the general contractor for this project?

Adding solar heat may require some other changes (like a booster pump or a couple new returns) I usually leave those type questions for others, but know enough to point you in the right direction.

Please feel free to ask any questions you have and keep us updated as to your plans and what's being done to the pool.