RE: Seagull Spacewalker II 120 Arf
The little sq blocking wasn't much fun to get out but I think the results will be worth the effort. I've the reinforcing parts fitted and ready for glue up.
I did note that the gear block looks to be plywood, probably two layers of light ply.
The step that involved removing the blind nuts (that part was easy) and the sq blocking (kinda tough) might be modified to leave the sq blocking and notch around it to make it a lot easier. Just use the heat gun on the tee nuts to release the glue and they come out fairly simply. I made a small puller in a couple of minutes.
I've seen too many gear ripped out of arfs to trust them.