Lots and lots of labor involved as others have said.
Ive redone two wood stocks for myself and had 20 hours in them.
The whole job can be done with sandpaper, chisels, and a spokeshave or palm plane(recontouring a cheekpiece)....unless you want pillars installed in which case you need a drill press and a forstner bit.
Chisels for removing wood in preparation for bedding.
Wrap sandpaper around increasing size sockets for barrel channel clearance.
Sand to bare wood with 120, 240, and 400 grit paper....chemical stripper can be used on checkering, but it usually needs to be recut or touched up if you want it sharp.
Steam out any dents with a wet rag and an iron.
Sand more and stain if desired...different wood take stain differently...alcohol based stains for leather work well, but you might have to mix and match the colors to get what you want.
Staining poplar to look like walnut is tough.
Then 5 to 8 coats of tru-oil...takes a loong time but worth it.
Easy to do, just takes a lot of saturdays and stop-n-checks.
No one would ever pay to for the labor required.
Shred