Jeff,
You need to check your math.
U.S. spec K75S production started in May 1986 as 1987 models. These bikes will be 33 years old next month!
As far as how available these are; they only imported 4600 of them over their 10 years of production.
With insurance companies propensity to total these bikes for the slightest damage, dealers hesitancy to work on older bikes, some owners tendency to part out a poorly maintained or damaged bike and my observations over the past 15 years of all the Ss being parted out on ebay, I would be confident to estimate that there are probably only about 2500 left. Of those, the majority of them are not for sale because their owners love them.
The few for sale vary greatly in mechanical and cosmetic condition. Last November I compiled a list of all the K75Ss for sale in the US on Craigslist, Cycle Trader, Ebay, MOA Marketplace, and IBMWR. I had to do this to convince a customers insurance company to not total his bike and to bump up the amount that they would pay to fix it.
I found only 21 for sale in the entire country. Of those, one had a blown engine, 4 didn't run or had major mechanical issues, 2 had major crash damage, and 4 were seriously cosmetically challenged. Of the 10 that LOOKED good, 1 was asking $7500 for a claimed sub 8000 mile bike, 2 were asking $5000 for claimed low mileage bikes (odometer readings on early K bikes do not always reflect actual mileage do to common failure of the instrument clusters that were replaced with new zero miles clusters). The other 7 ranged from $2200 to $3600 asking price. There was no way to tell spline condition or valve condition.
Where you live will determine how many are for sale within a few hundred miles. Most will be on the east or west coasts. Very few in between.
More so than mileage, the most important thing that determines value (as opposed to asking or sale price) is condition. Specifically(and most important) is the condition of the splines (driveshaft/final drive and clutch/trans input shaft), the condition of the valves (how far have they receeded into the head and how much adjustment is left before you have to have the head rebuilt), and the cosmetic condition (paint is expensive).
A beautiful well running old bike can be hiding bad splines or valves that are on the thinnest shim avalable.
Or it could have been well maintained and be in great shape with well over 150,000 miles.


