you can use 40mm m3 for both latch pieces and the two hinges if you like. I just glue the bumpers on with super glue. Note the bumpers are not identical. they have cut outs in the back where the hinge is so print one of everything.
Update: There is a new version. Its a bout 20mm longer and now has an optional peg board at the top. ive added two inserts i currently use. both are circular, one holds things about 9mm in diameter and one holds 16mm.
The author marked this model as their own original creation.