Plus 1 to Mungo's.222 Sako 75 - shot it yesterday and it is lovely and light and very accurate - 3 shots through a 7mm sized hole. They just don't make it with the handle on the correct side, otherwise I would be sorely tempted
The CZ / Brno Fox makes into a nice little rifle.
Or Zastava makes a proper Mini Mauser controlled round feed, staggered box built for 223 sized cartridge action. Made in Serbia and readily available in the US but don't know if you would get one here in the UK. By the looks of it they need a bit of cleaning up, but with a bit of work could make a really nice rifle - Custom Mini Mauser Finished - Topic
As for the stocks - there are quite a number of US rifle blanks / stock makers that can let let you have a semi inlet nearly finished blank and then either you or somebody like PKL can inlet and finish for you.
This is beautiful! Read the article - very interesting (well, for me anyway)! Think that parts might be tricky but will research! Thank you.