For modification: Rotate it around 20° around x-axis so that it is sitting flat on the bed. Support is need only on the base, no internal supports. Mouting with 4 M5x20?-Bolts and 4 M5 nuts and 2 M4x6 countersunk-bolts.

It is an "heavy" use of Prusaslicer to modify the original model. Current versions printed in PETg with 4 boundary layers and 40% infill last up to now without any problem.

It will last even longer with a simple support at the lower end of the lock as shown in one of the pictures.

The locking is much more stable as with the small Klickfix like https://www.printables.com/model/258851-abus-klickfix-latch