The first picture is the frame as I got it. The welds are really nice, and the motor is straight. I'm going to do some reinforcement on the head stay; I just don't think it is nearly stout enough. The frame does not have a clean place to attach anything under the seat, so I am trying to engineer something using the stock head stay location. Thankfully it is uphill from the head and has two attachment points to prevent rotations. I'll post pictures of what I come up with.
I was able to get the swingarm and linkage on, subframe and airbox, tank, and the footpegs on. I will have to reconfigure the radiators a bit, as the KXF radiators are very long and won't work with the higher Y piece. I'm going to try the KX radiators and if those don't work, I may have the KXF ones cut down. The other issue I ran in to was the kickstarter. If you set it in its normal position, it hits the frame. If you put it forward one notch, it hits the clutch cover. I'm going to look at some KXF ones to see if I can engineer something. If not, maybe I can talk my buddy in to making me a billet one. Other than those two things, the rest of the stuff is going on pretty well, and it should be a really straightforward build. The pipe needed a small dent on the back side, but it should fit without much modification of the mounts. The airbox may need a spacer, but it looks pretty straightforward as well.
The second picture is where I got to today. I'm having my suspension redone at N2Dirt and it worn't be in for a few weeks, so the bike won't be moving for a while. My next steps are to get the rear brake rebuilt and set up, the motor spacers fabricated and installed, and the airbox mocked up. Then it's on to the tank cover plate, the radiators, and finally the kickstarter.