Ok, I'm a little closer now, but not where I thought I would be. I acutally read the instructions on the Lord Fusior, and the cure time is 24 hours.
Which turned out to be fine as its too cold to paint today, it never got out of the 40's and my activator for the paint is ment to work around 50-60 deg.
Here is what I got done. I hope the flares look good {and stay put} mashed into the fender where the gap runs.
First I used a knife to cut a cross hatch pattern in the flares.
Then put the flare on the fender, and taped it off.
Then using my new epoxy gun, and guys this thing works great, I added the LF to the underside of the flares, and top of the fender {which I etched yesterday}. Then clamped down the parts with gaps, and now to let it cure.