Mollydog, unsure if I can do your interest level into the 701, or your time investment in your post, justice and answer all your questions but I can share the following:

I show 12,000 km on the clock and issues so far are an intermittent horn which was replaced under warranty.

For MSRP I recommend contacting your local dealer. I live in Canada and these bikes can be difficult to find, likely less so in the US I understand.

IMO vibrations are relative to the rider and I find them non-existant on my 701, but then I have ridden mainly dirt on dirt bikes - to me the 701 is carpet smooth.

Yes, I do my own maintenance. 10,000km oil change intervals.

Would I ride it rtw - yes.
Are parts as plentiful as the DR's etc - highly unlikely.
Would that stop me - no...in fact that is why I purchased the bike.

Check out Tom and Caroline as they ride their 701's rtw for a list of improvements and challenges encountered:

About us • MotoMorgana

Or Check out Dave's RR taking his 701 from Tucson to AK for breakfast.

Riding to Alaska for breakfast on a dirt bike | Page 4 | Adventure Rider

But what it really comes down to, for my riding style and interests, is the smile this bike puts on my face every time I ride it or even 'think' about riding it.

And as Mr. Chris Scott points out in the AMH: '...don't forget the value of a machine that, even after weeks on the road, still gives you a thrill to look at as you crawl out of your tent each morning.'