Simple print.
No supports needed.
Basically, print this part (should be oriented like a Tetris L-Piece, with the short nub facing up), insert the threaded insert, and then use the existing screw in the top of the tripod mount to secure to the telescope. (threaded insert should face the rear of the telescope
To attach the MagSafe mount, use a ¼-20 male-to-male adapter and screw the pieces together.
1x https://www.printables.com/model/287836-sturdy-tripod-mounting-system-for-hadley-telescope
1x https://www.printables.com/model/265921-magsafe-iphone-mount
1x Threaded insert
https://www.amazon.com/gp/product/B08PVQX853
1x Male to Male ¼"- 20 adapter
https://www.amazon.com/gp/product/B018SMYL9M
The author remixed this model.