Duane,
Maybe try a combination of the peanut stuff that Joane mentioned and the canned spray Great Stuff or a cheaper brand. In some parts of my tear, I used the great stuff (Wal-mart carries Great Stuff and another brand that is less expensive.) I bought the Great Stuff from Lowes and it was $5.96, then I went to Wal-mart and it was $3.$^@$^. I happened to mention that it was cheaper than Lowes when I checked out. The next time that I went to buy it, Wal-mart had gone up a whole $1!. They have another brand in a green can that is cheaper and expands just as well. I have used it and it cuts with a hand saw or a Dremal.
Using a combination things, you might only be out of $50 bucks or so as compared to $225. ...just a thought.
Todah