I picked up this late 70's Wingmaster for a great price. When I got it home and opened it up for a cleaning, there was literally zero wear inside the receiver. No wear on the mag tube from the slide or on the action bars. The thing is mint.
The first issue is that it's a fixed full choke. After a bunch of searching, a bunch of shooting clay's as well, and talking to my buddies who have been doing this for a long time, I realized this is not too ideal for what I'll be doing. I was also worried about taking such a fine example of a Wingmaster out into the field where it'll get beat on climbing through the desert terrain. I searched for options, thought about selling it for something less pretty and more adaptable, ran budgets looked at options, and decided to keep it.
I ordered a new barrel for it that is threaded for chokes, so, that solves that problem! After selling it and getting a mid-range semi auto like a Mossberg 930 or one of the Turkish guns, It all would have cost the same in the end. I also came to the conclusion that being pretty matters not. This gun was built to hunt birds, and in 40 some off years it clearly never has, so I'm going to use it for its intended purpose. I've got a vintage American made work of art, and I'm gonna use it

So anyway, I need a sling due to the long walks and crappy terrain. What would you all recommend I do? I have a sling stud kit with a magazine cap. I'm kind of torn, do I put the stud in the back of the stock, or should I mount it in the cap of the grip? Is there a good reason not to do this? Picture of a mock up:

Are there any good leather slings you can recommend, or should I just go with any old rifle sling that is long enough?