After getting the tape on and squeezing sealer everywhere I put in to the window. I held it with cleocos in every hole. Then installed screws.
The sealer also cures slowly which I wanted because it takes awhile to get all the screws in. Then I removed the tape and cleaned up smears with WD-40.
Looks pretty good.
I don't have the bead around the rear edge like some, but sealer is in there and so this shouldn't like. If it does I can add a bead of sealer later.