Hey, just a quick suggestion, if you are going to spend as much as you will on materials you might as well spend 15$ and buy the Farrier study guide (f-boats.com). It outlines the technique pretty well. It also gives you the materials lists from which you can pretty much figure out the layup schedule for the F22 (overbuilt, but you will be getting an idea). It is not complete, you will still have some question afterwards, but it would take me a long time to post everything I learned reading these.

Once, you have seen the technique; then you can choose one of the foams suggested or better yet ALL the foams suggested and ask the manufacturers to fill in the blanks of products to use. Hell, even pose some ambiguous questions to Farrier himself.

You can use just a heat gun (like a high powered hair dryer) to bend the foam into tight radiuses. Most builders prefer this method.

Matt