I recommend printing it in PETG. PLA or better PLA+ works too but be careful as PLA can get to bridle over time.

Use Perimeter (Walls) to make it more durable, not Infill.
Don't use less then 15 Procent Infill with Gyroid or 20 Procent with any other Infill Pattern.

Need Bolts are M8x65 or longer.

There are 2 small Parts to Test the Tolerance for the Holes of the Bolts. The T10 stands for 8.10mm and the T20 for 8.20mm.