Congrast on getting the box set for starters - that's a nice piece. For the Snowtrooper, I personally would just wait a year for the Deluxe wave to hit. That has a very similar snowtrooper and you can just swap heads. That shouldn't be too expensive in comparison and will look better than any kind of fix up job. Just my two cents. Good luck whatever you do!
I didn't even think about doing that. I'm sure the Snowtrooper will be common as well since most of the imperials have been, so that's a plus. I might keep my eye out for a single Stormtrooper as well in case a really good deal hits eBay, but ultimately I think I will swap the heads when the new Snowtrooper comes out.
Thanks a lot,