Can you get a tour to the tracom for T-6s? Or swing a reserve fixed wing job? I'm not sure the osprey counts as fixed wing since it still lands more or less like a helicopter. might be airline specific as whether they count it or not.
I'd also look at a board called
APTAP.org - Professionals Helping Professionals
It's army helo to airlines with a lot of the same questions you'd have regarding helo-airline transition.