Pentax is the way to go I think!!
It certainly looks much better than when I first picked it up, your right, it had been sitting outside half stripped...no carbs, no brakes, no foothangers, no bodywork, bent forks etc etc, basically it had been raped over several years. Luckily I was just about to break a 21R so all the bits just swapped over and it was saved from being stripped a broken for spares which is what nearly happened to it.
I just put some carbs on it and she fired up, sounded a bit rough to start with but then soon cleared up and sounded good. I am sure you will do a cracking job and restore it back to its former glory. In fact it looked very good already when I came to see it.

