If I'm not mistaken, you can buy a 2-pc. mount that allows you to run a 1"-tubed scope. I did one for a farmer friend about 10 years ago, Cooey 60. I believe I bought the required stuff to mount it @ Epp's. Unless you're after an old-school look/keeping it "OG", I'd go this route myself.
As for the scope itself-lots of options. I look for scopes with adjustable objective, and make sure they can "focus" down to under 50 yards. If you search the EE under "AO", usually a number of options will be there. Not TOO common to find AO scopes down under 12X or so on the top end, so have a sense of how much magnification you're after...and wait for the right candidate. (if searching used) The higher magnification options will work too, but may look too wonky on the Cooey and/or eye relief could be an issue when tethered to the geometry of those side mounts.
