Post 63 model Winchester 70 Serial Numbers were jumped up to 700K forward. In 1968 the G prefix was added as otherwise serial numbers continued ongoing & undisrupted. In 1991, the 'backfill' G prefix from Sn 1 to presumably maxing out at whatever the G prefix post '68 serialization began. If you're not confused, kindly re-read!
POP Quiz to follow!
Best info I've seen: Sn G75K to G120K date to 1994. See below correct stock on a Super Express Model of the same purported year, G113K serial number. Your stock 'aesthetics" don't appear suggestive of '90ies vintage at all. Bit of a conundrum. From appearance alone IF factory, perhaps suggestive of Model 70- early post '64 push feed. Believe the "Classic term in your action as designating CRF? Further believe your metal, '94 was intro year of such "stainless Classic" 'as I recall". Stock 'fit', can be adjusted & use of bedding material can fill in internal voids.
I'll do a bit more research and advise if productive!
Hope this info helps!
Good Luck, Best & Just my take...!
John