The .22 Hornet is a unique creature. Parts problematic and parts substitutes a hazard perhaps even as occurred some 80+ years later! Feeding/functioning issues prevalent.
'If' the metal is decent, another stock could be found as I 'believe' even with the 22H, it should be a drop-in cloverleaf tang style external fit & maybe some internal inletting fussing. Any stock up to about '47 or so genre to work. The safety may be a "Tilden" transition safety.
IF you really want the rifle as a keeper, a 'maybe' & willingness to 'fuss' with it. For speculative sale... I'd not risk the likely fuss.
Pix worth a thousand words... Ahem! Ahem! Few pix: Model 70, 1946 showing Tilden transition safety as perhaps you describing. Same prewar vintage 15K SN as yours, reflecting era-standard so-called "Flag" safety as the Hornet should have.
For info, both the rifles here are in .257 Roberts & Super Grades. Early one with Weaver K2.5 scope & Stith Mount meaning 'of-genre' as no rifle was harmed in securing of that scope mount! No extra holes)
Hope this helps!
Best!
John