I'm glad to jump on that train as soon as it arrives in the station.
I know I'm limited by my lack of mastery of technical US vocabulary and working only from pictures but I'll venture two questions :
- Why not using the parts I show in the close up ? making the parts sliding vertically and horizontally would be fairly easy.
- I would never have had the energy to use a handsaw, I would have used a thin disk on a grinder following a guide along the pipe. The gap would have been wider for welding but the job could be done.
Of course I'll regularly read the posts as soon as they are published.