We’ve bought 2 similar tourings in the last 2 years. There are better deals out there. Everybody here is telling you about the same thing and I agree.
If you want the bike it’s just a matter of haggling.
I’m not trying to school you, just offering a few ideas you might use making the deal. All of this has been seen before by a seasoned salesman, but there are points here you should make to strengthen your position.
I would politely nitpick-
Ask how to fix the little dings and scratches.
Express concern over the absence of a tach, whether you really care or not.
Express concern about dry rot in the tires.
Express concern about condensation in the final drive and oil, and seals & gasket shrinking since it has obviously sat a lot with so few miles in so many years. Ask what it costs to have the next scheduled maintenance done.
Check the brake pads and verbally note the extreme wear considering the low mileage.
Check the function of all the lights and handlebar controls.
Check for scratches indicating it has been dropped on the ends of the handlebars, mirrors, levers, outside of crashbars and foot boards, and lower outside of the silencers.
Check the fuel gauge, a common touring problem (it isn’t just a loose connection).
Ask if there is a knowledgeable mechanic nearby and about the availability and price of parts.
Ask about the ignition switch (common problem) and if there are relays on all the circuits it controls (the answer is no).
Ask about detent springs failing (common problem), where the broken pieces go (into the oiling system) and what it costs to fix.
Ask about the wobble at highway speed common to tourings, and what it costs to fix that.
Ask about the HP rating compared to a roadster (tourings are detuned).
Sit on it and talk about how heavy it feels, ask him to hold it up while you sit on it with your feet on the boards (lean or shift your weight a little to make him work).
From there I would tell him he has 1 shot to make his best price to which my reply will be yes or no. No haggling.
Unless he comes back under 6000, say no thank you, shake and start towards the door, if he doesn’t stop you, stop and offer 4500, the answer is probly no, pull out cash pretend a quick count so he can see it and ask him to meet you halfway between his last offer and 4500. If he won’t, tell him you’ve got another bike to go look at, make sure he has your number and leave. You can always call him back.
And post some pictures of it...these guys are good and will amaze you with what they can spot in a picture.