So this is about assembling a non standard set of chainrings on an existing crank arm set..?
if that is the case, then it is safe to assume many combinations are possible,
as long as the bolt circles match up and the chainline works when you're done.
Non Indexed, friction/ratchet shifting allows more flexibility.
I put down market steel chainrings on my touring bikes crankarms , and got increased wear-life out of them,
as well as choosing them for their tooth count.