Welcome !
As Bob pointed out, it can't be a 1980 model year, most likely a 1981, though these could have been
built in the factory as early as Sept 1980. from the photo it looks to be in decent shape. Does it still have the
(2) black plastic "inner" covers in the fairing (these slip over the top 6" of the fork tubes and cover up all the nut
and bolts, turn signal stalks, etc. that would otherwise be visible inside the small fairing). The fairing is a bit of
a challenge getting apart to perform service on the handlebar.fork/headlight area, and some of those black plastic
bits have little tabs that are easily broken off, or small screw holes that are easily cracked through. But, with
care it can be handled. Certain parts, such as the (2) inner black plastic side covers for the fairing are no longer
available anywhere, unless one comes across someone who is parting out an old bike. The LS models are
pretty nice, especially if you have one that already has luggage and brackets - there are a few different luggage
racks that fit the R65 models of this period, but only one of those would fit the LS (others would run afoul of the
extended tail piece behind the seat, but with some imagination and a saw, others lugge frames could be made to fit).
If it has been on the road regularly, some things like fork seals, etc. will probably be in better shape than if it
were just sitting. Pull the spark plugs and check that they aren't oily, and should be the same colour, etc. If well
maintained, 38000 miles or 38000 kms is no challenge at all for these engines. Not knowing your climate, but if it
is dusty and dry or muddy and moist, the splines in the drivetrain should be looked at shortly unless the owner has
evidence that they have been recently serviced/lubed.
This bike isn't as stable at high speeds as a K bike, but it will also turn on a dime in the tight twisty bits if well set up.
Its center of gravity is much lower than a K bike too, it only has about 50 BHP, 40% to 50% less than a K bike, but it
is much lighter as well. It also seems to rev much quicker than my 1988 R100 would, and can potentially run more
smoothly, though its lower gearing definitely makes things more buzzy than the big airheads once over 100 Km/h.