drop24
Sorry but seems you're making something very simple into something incredibly difficult.
You say you've lived in Japan and want to continue living in Japan so you have an understanding of the psyche and I assume realise that if you go flying in Japan - in any airline - you'll be at the cutting edge of 1960's methodology and thinking.
Sounds like USA's not an option...so why are you bothering to bang on about it?
You've got up to 5 companies looking for experienced Captains, minimum 2 looking for F/O's all with different deals/basings/types etc.
Bite the bullet, do your homework, get a job in an open market, get the licence, get some time on type...then decide whether you like it/hate it/look at changing companies...whatever.
Or don't have a go.
Simple as that, really.
And IF during your homework you find the "perfect" job...please feel free to PM!
I'll await your PM with great anticipation!
Best of Luck, Cheers.