Hey Fatman, It's been a while since I built one of these. If I remember correctly, there is a flat mounting plate on the top/back of the fuse. The horizontal stab glues in place(30 minute epoxy). After that sets, the vertical stab is glued on top. Seems as though there are balsa wood filets that are glued on each side of the vertical stab. I beleive they have to be shaped to match the contour of the fuse. Do the carving/sanding/shaping before you glue them in place. I'm assuming you know how to square up all these, in relation to the wing/fuse.
As far as the servos, you have to make your own "rails" to mount the servos in the fuse. I would save that for last to help with balancing.
The reason your hearing negative feedback on this plane is because it will tip stall if it is not flown with respect. It's not a forgiving plane to fly. If you are low on experience with a low wing, fully symetrical wing, put this plane in your closet for a couple years.
Hope this helps.
Ed