An idea FWIW, assuming you can remove the 2" handle you built;
1. 45 off one end of a 10' 4x4 post.
2 Attach a scissor jack to the top of the other end of the 4x4.
3. Slide post/jack assembly into the 8" pipe. Seat the 45 angle of post with PVC elbow.
4. Hook into one of the 2" holes with a rachet strap. Run the strap over the jack and hook into the other 2" hole. Tighten the rachet strap.
5. With the stap centered over the jack, raise the jack. The post will push on the elbow as the strap pulls the 8" pipe.
