If you really want to be useful as a _training_ tool instead of macho challenge performance,
set your vertical spacing at 11 cm instead of 22 cm (so you can do more _incremental_ increases in big-move intensity).
Instead of using each rung as 40 cm long, chop the rungs into 13 cm (? or 10 cm?) pieces, so you can have two different rung thickness-depths at each vertical level.
. . (and so you purchase only half as many rungs to cover the same number of vertical levels).
I'd suggest the Medium and Small-depth metolius sizes (because if you're a strong climber the Large-depth holds are like buckets: train mainly arm strength, not the critical finger "contact" strength.
Keep the vertical overhang angle less than 20 degrees (if using normal campus rungs).
Better if have some foot jibs in range so you can use your feet to "cheat" at first on bigger moves or with smaller-depth rungs.
Ken
Post edited at 20:59