It's not that hard. Got the complete kit? Layout the parts it will make sense. The bigger problem is drilling out the rivets. Pain In the BUTT, BUT I used an air hammer with sharpen chisel at an angle that sheared the them off 1 2 3 QUICK. No crazy angles to deal with a drill motor. Tap exsisting shank with a punching bit in the gun and be done with it. 20 minute job to strip out the old seat junk.
Heads or tails, rivets no problem. The power of air, CAMO