Quote -
That's to make/use a bodysuit, run the cloth simulation with the bodysuit, so it covers the whole character and shapes as you want (Into a zero pose but with the character's morphs on it) Then you could export the prop and then use something like Morcloth to apply this morph to pretty much any clothing..

It sounds similar to spawning a FBM of the character, and dumping that onto a cloth with Morphing clothes, correct?  I was doing that but it got to be very time consuming, and my runtime size got out of control.  I'm trying to do it all from inside Poser.