BB, you didn't read the OP properly. It's also fairly confusing.
CB
So, you talk about being fresh/low hour FAA CPL and doing European MCC? What for? To qualify for what? Without conversion?
Or you talk about real deal FAA ATPL holder and European MCC? Again, for what?
You've asked various things about initial training on PPRuNe, South Africa, etc.
AFAIK, and I'm not expert, if you have multicrew over certain weight experience on ICAO, FAA etc ATPL and you want 'JAA' papers, the experience would give you credit so that you don't have to do MCC.
I can't see they point of your query, really.
In the US, one can get FAA ATPL flying nothing but single pilot aircraft - it could also be mostly single engine. There's mainly hour, XC and night time requirements and then knowledge test and checkride/PST. Nothing to show for MCC to be waived.
Are you thinking of 'way' to avoid doing licence conversion?? Doesn't work like that for joining European airlines. Or rather, the chance to apply and be considered these days.