I have an idea of building a low wall .22lr into something like a traditional English stalking rifle.  My idea would be a slim octagon barrel, express sights, ebony forearm tip, red pad or steel butt plate, etc...  Think 'squirrel safari'.

Could a pistol grip sporting stock from CPA or Treebone be shaped enough to give the appropriate appearance?

I ask because RJ Renner does something similar where he takes a Ruger No1 and turns it into a classic looking English stalking rifle. I was wondering if mild(ish) changes to a standard low wall stock could result in a similar transformation.   

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Americanized English  .

I'm worried the geometry of the action and stock are wrong and no amount of shaping will get me there.

I'd call George at Treebone and talk to him about your idea and see if he has a pattern that will be close to what you're wanting. Whatever he has will be extremely close and not result in days of whittling down to get to what you need, unlike other semi inletted stock offerings are.
I'd skip the recoil pad for a .22 stalking rifle. A nice steel plate would look much better.

I have seen numerous English rook rifles with octagon barrels.
If you want to be really cool, an ovate one is extra nice.

As for the stock, iron tips (heel and toe plates) are quite handsome.

This is probably the closest of the ones I've seen, except for the scope.

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I could simplify things and make it cheaper if I just went with a straight grip.

If I remember correctly Ballard Rifle Michigan made a few English style 1885 for Safari Club in large English calibers and Prince Of Wales pistol grips and Safari parade sights shortly before they closed their doors. Might look for some examples for ideas? They looked sweet but we're way out of my price range at the time.   My $0.02
Flatlander

Thanks for the pictures and suggestions everyone.  I'm taking it all in.