So my IACV looks dead, From what I have researched the motor winding should read approx. 5 ohms, mine reads .5 ohms. It does not react at all to applied voltage of 12V, no clicks, no valve movement. I suspect a shorted winding.

At this point in time, available new MZB valves are in the $500+ range (gag me with a spoon).
Used are in the $100 - $250 range (hesitant to go there, too pig-in-a-poke-ish).
Aftermarket new seems reasonable at $100 - $150.
Has anyone purchased one of these non-MZB units and what was your experience?
Are they a workable alternative or am I better off rolling the dice on a used one? The customer reviews on them are spotty.

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1999 E320 (gave to daughter) 250K
1994 F150 (may be the end of its road) 240K
1989 560 SL (Reassembly after paint job) 160K
1986 560 SL (deceased., gave it's life protecting my wife)
1988 300 TE (departed)
1994 945T (still running strong with an upgraded cam) 349K
1986 242Ti (deceased)
1968 GT500KR (under restoration)