Thanks for the nice comments, Guys.

Joe, it's choked .022 & .022. I've found those chokes and 1 ounce #7.5 do it all for me.

Making my own stocks has long been a serious hobby of mine and it meshes nicely with learning all the nuances of stock fit that are so critical to shooting better. Doing some of the work myself saved me a few hundred bucks but anybody can own a similar 12ga Fox for $3,000.

You can still buy a 12ga Sterlingworth that's unaltered and functionally as-new for $700-1,000. Don't compromise here...settle for nothing less than perfect barrels tight on face. They'll likely be 30" IM/F and excellent ones are not that uncommon.

Let's say you spent the whole $1,000.

You can buy a very nice American black walnut blank with 50% feathercrotch figure (for instance) for ~$250. A decent California English blank like I used can be had for $5-600. Buy the prettiest you can afford....pretty wood is forever.

You can send the blank and entire gun out and have the a new stock made to your specs, hand-fitted to the metal with a recoil pad and returned to you in <4 months, ready for finishing. Total cost ~$800.

You spend $10 for a can of ProCustom Oil (or whatever) and finish the stock. Anybody can finish a stock. Learn how.

You take the wood off and send all the metal parts out, as fully assembled as possible. The shop will disassemble, polish barrels and action, slow rust blue the barrels and color case harden the action, alter the chokes to your specs, reassemble and return it looking brand new for ~$800. Again <4 months.
Somewhere during this time, the finish has cured for 6-8 weeks and you've rubbed it out with some 3F-4F pumice, maybe some 5F rottenstone and you send the wood out to be nicely checkered for $150, < 1 month.

What you have, in a year or less, is not a knockout, full-custom Fox. It's just a Sterlingworth with double triggers, extractors, snap-off splinter forend and semi-pistolgrip. But the metal finishes are as fine as factory-new, the stock is seriously upgraded and, if you've done your homework, it fits you like a glove; like no off-the-rack gun is likely to. You can spend a little more at any stage, but this can definitely be done...

Gun......$1,000
Blank.......250
Stocking....800
Metal work..800
Checkering..150

for $3,000.