Geez, after reveiw of the pics, you might want to go ahead and use that kwik strip stuff they sell at home depot to take all the paint off, then you can see the nitty gritty of anything that's hidden. I did a Byron F-18 with that stuff and took it down to the gel coat. It didn't attack the gel coat. Good Stuff. Then go with David's suggestion on areas that just need filled. Epoxy and microballoons. It's light weight and works great. Just make the paste and then use one of those yellow bondo squegees or a credit card, sand smooth done. Unless it's structurally unsound, then use any of the glass techniques, but I would try to do the repair from the inside if you couldn on that nose section. Play around with it. At that price, sky is the limit, don't give up, do it over and over. I've found that the more questions you ask here, people like David, and Todd and many others chime in and educate me. Had no idea how useful this RCUNIVERSE tool is. It's all intimidating, but just go for it is what I've found. Worse case, sand it off and try again! Best case, a first class looking and flying F-15. I love mine!!