No problem. Nolva is considered a SERM, similar in a way to AI but doesn't crash your E2. Now you can have other e2 problems that nolva won't fix but for sensitivity a SERM would be my first line of defense.

I like your cycle that you're running currently. For the proposed cycle of 750/50dbol, it would be 1100mg of gear/week. Right now you're running 780. Why not split the difference instead of a huge increase for the following cycle. Use the smallest dose that keeps you progessing. If you run 1100, what's next? A gram and a half of gear? I'd stick with minimum effective dose and going by you being out of the gym for 3 years you don't need to crank your face off to progress.