just a few more words:
the pic of the wheel on John Wesley's build-thread (page # 22) shows the recesses/punch(e) I meant! A rim like that can't be connected to any hub of your likes, it must have the same number of holes for the spokes and it has to be drilled at the correct angle to line up rim, spokes and hub.
Kind regards, Bambi
'Find me kindness, find me beauty, find me truth ...'
(Dreamtheater, Learning to live)