I picked my K5 up for around $1k off of ebay not too long ago. It runs well and has most of the normal leaks and problems you would expect out of a '75 I already did the "just bought this bike" maintenance to include new tires and am happy with what I've got for this riding season. I plan on a complete disassemble after teh first couple signs of unrideable weather.
here's a pic of when I got it.
some new sport bike style bars
a new seat and paint job sure changed up the look
Then I go soo tired of that bulky ugly rear fender and light set I had to change it up.
I've also installed the Campbel Xpipe It's nice. I just haven't taken any pictures yet. I will next time I'm out and about.
so that's where I'm at right now. I'm still fixing things as I go and just having a good time wrenching. come the end of the season I'm sure to have quite a few questions and will be in search of wisdom.