If you are concerned about clamping the sloped front cap and not the side, then I can talk to you about this. I had 2 spots of delam, one on each side of my front cap window. It turns out my delam was from heat and a poor glue job from the factory. The issue is the same regardless, if it's from heat or water. The luan gets an air pocket between it and the outer fiberglass skin. I also used the epoxy resin from Composet. I highly recommend it. The trick is getting the epoxy into the top of the delam bubble so it can run down and be forced by pressure to contact all of the inside of the bubble. The other issue is to not get too much epoxy in the void as it will harden and then cause a solid bulge. I used a wooden frame with 3/4 inch hardboard to lay against the delam areas with ratchet straps pulling from the rear of the coach. You have to get the angle perfect to insure uniform clamping. I ended up drilling a small outside hole at the top of each bubble and then using the included syringe to inject the epoxy. I then filled and painted the holes. The repair came out pretty good. If I point it out you can see it but all in all it looks good. Good luck, it's not a fun project.
