The front wheel was out of balance.
One thing sorted, cool. Even if you decide to sell, it would be good to fix the other things first. Then you have a nice looking bike that needs nothing (right away). All bikes need love now and then, older ones more so. Yes, they have come a long way in the last 10 or 20 years, but a lot of the old bikes were cool and not too complex. My 14 Monster is cool, but really complex. I do appreciate the ABS and DTC safety items.
To simplify, a quick shifter is a button you hit to shift gears. No messing with clutch or throttle, the computer matches revs, cuts spark, makes the shift, peasy. Also complex electronics.