Actually, the belt installation methodology needs to be simplified.
First, the required belt material is not 1 meter, it's about 910mm. Measure yourself, don't take my word for it.
Second, the entire assy can be assembled and the belt can be zip-tied together counting 6 teeth meshed into each other off-machine AND THEN installed onto the linear bearing as an entire sub-assy.
I honestly can't believe that this belt is zip-tied together. One of the first things to replace.