also take your time masking. Thats the most important step. Use scotch brite to scuff all the edges and anything else you can't get with the sander to prevent it peeling later. And if you've sprayed armorall or another type of silicone lately you could get fish eyes. Hopefully you won't. Good luck.

And don't cheap out on the primer. Go to a paint supply store and and talk to them. PPG and Dupont are great.

Also, 80 psi is way to high. That will just cause more overspray. I spray my primer at 30 psi. Do you have a HVLP gun?