I would go with Mr. Furious and Option 1

Option two is to get the narrower one and open it up.

My first TH buy was a lightweight hunter TH. It now has a Bull barrel in that action. Took a bit of work with a dowel and heavy sand paper but it works just like wood (actually a bit easier)

I am no wood worker and have had zero issues per follows.

Looks fine. A bit of Formby to seal and good to go.

I did not want to wait for a stock to get the larger Bull, so I went with a Varmint and opened that one up

Last one was a Varmint but not as large as the mfg contour (close but....). I opened that one up as well.

Boyds has a couple of close areas but a lot of open as well.

You just get a really heavy grit sand paper, wrap it around a 1 inch dowel and away you go.

Putting the stock in a gun vice works nicely. You can fine sand it down a bit when you have the contour right.