Hi,
Thanks again so much for your help folks. I appreciate all the feedback and bringing up things I would not be aware of.
I got a couple pix of the log book and they look like this:
As I understand things this is good?
This bike has 120,000 miles. It looks like it got up to almost 80K in the first two years!
I see references to transmission (at 78K), clutch, cylinder "head"? [can't read that too well], swingarm & final drive, reseal top end, replace main seal, etc., etc.
The bike again:

If I understood you all correctly some or all of this should be what I want to see on a bike of this mileage and it makes the mileage more acceptable? This seems like a high mileage bike but it's actually been looked after and maintained, unlike some of the others I've shown you. I hope and pray that there are no major time bombs waiting to go off any minute here. Of course there will be basic maintenance, I just don't want to buy a few thousand dollars in necessary repairs before I've even had it a month.
The price is very good (lower than most bikes I've been looking at), which means that even if I pay a pro to give it a good basic service, it will still be within budget. I plan on doing a compression test when looking over the bike. If everything seems within reasonable parameters, I think this is the one, if none of you see anything that means imminent doom.
Thanks you again for all your help.