Try gun shows and gun shops if that fails try an online gun auction.
ANSWER:
I just picked up a JC Higgins Model 45 30-30 at a gun show in Kingman AZ. Paid $250.00 for it. I962 year model. They were only offered from sears from 1958 to 1961.
The JC Higgins Model 45 was made by Marlin and is basically the same gun as the Model 336. Manuals are availabe from Marlin Firearms. The JC Higgins Model 66 was made by High Standard and is out of production. I have a manual scanned, and can email it to you. sales@countrygunsmith.net
It is a Marlin 336 carbine as made for Sears.
Blue Book of Gun Values
Higgin ShotgunYour shotgun was made by Stevens arms model 311 101.7 was the sears model no which identifies the maker and model 101 is the sears code for savage/stevens07 means 311 it was made between the middle 50s to as late as 1962 when sears stoped using the jc Higgins name.
1947
1958 to 1962 for jc Higgins
Not more than $200 ea. can i be a model
It's a Crosman model 140 or 1400 made for Sears using the JC Higgins name. It was made between 1954 to 68 in 4 different variations. Crosman offers a service to locate repair shops the restore older Crosman air rifles. see the link below.
marlin 336 these are excellent rifles 250 dollars
Marlin
The Model 45 is the same gun as the Marlin Model 336C. Pricing on the Sears model would be approx. 10%-20% less than the Marlin.
You will have to search the online gun auctions such as GunBroker.com and AuctionArms.com