I donŽt think that ground clearance would be to bad for the Adv. Anyway iŽll do the 320 or 300mm suspension. If you are thinking hardcore enduro with a RC8 SE it could probably be a problem, but then you will have many other concerns as controlling 150+ hp on wet logs...
I do agree that the radiator can give some problems. I was hoping i could keep the LC8 radiator and double fan it. But space is tight.
As i said, i dont think clearance would be a problem as long we are talking adventure riding.