Kev: here's what I can see in your fabulous find! What a treasure!
1. The points ARE original: they are Hitachi points. They came on 1971-73 New Factory bikes. Good points, very long-lasting. The condensors may well be done for, just because of age. I'd recommend replacing them right off, as they will cause the points to pit up, fast. You may well find the timing to be spot-on, as the Hitachi foot lasted forever.
2. No chrome on the bottom of the tank: the K0-K2 chrome came off pretty fast. Their plastic splits, and the top layer comes off, then the strip falls off by itself. This was improved in the K4 era.
3. The 8000 RPM tach is all New Factory. The early K1 Old Factory bikes had the 8500 RPM redlines, like the K0. The New Factory cam has slightly less duration thanthe K0, and the mainjets in the carb are probably #115 with the needles at 3rd notch: this makes them foul plugs like crazy. Many were re-fitted with #110 mainjets, and the shop was SUPPOSED to also drop the needles, but few did because it was too much work for a $12 warranty upgrade. Drilling the emulsifier holes to .039" was easier, and was more often done, than adjusting the needles. It helped reduce plug fouling without reducing throttle response, too. The MPG improved to nearly 40 MPG with the #115 mainjets and the needles in 2nd slot, though.
4. The chain is an RK, if OEM: it will last about 4k miles, and might be a one-side, riveted type that requires the swingarm be removed to get it off the bike (unless you just cut it off). It was before the "new" RK copies of the Diamond chain, and the bike will probably NOT have the "improved" sprockets with their larger-than-normal base circle. In other words, it is one of the early "chain eater" 750s.
Powerful bike, too!
5. The alternator and shift cover cases on yours look polished? The clear-coat on the engine is OEM. Usually the side covers were a more satin appearance.
6. The K1 had a history of over-charging the battery on hiway jaunts until the voltage regulator was either adjusted 'down' a little bit or replaced with the newer style unit that did not "toggle" as much. This caused the battery to boil after about 200 miles of hiway steady riding, which caused loss of paint (or worse) on the frame, and sometimes on the pipes. The battery hose became longer after that, exiting as the lowest thing under the bike! Then, if it dripped, it wiped out the white lens on the taillight and caused loss of chrome in the middle of the rear fender.
I'm just full of nostalgia on the old K1 !