My kit only came with 3 header/jumpers. Two 3 pins and one 2 pin.
Then again my kit also didn't have a input transformer and had the output transformer from the J99 kit. Maybe somebody had a bad day

Aside from that everything has gone flawlessly. The updated assembly instructions are leagues better than the old ones, and for the other questions I've run into I've found solutions here on the board.
Allmost done! Just have the tranformers and a few caps to go.