cws,
I don't know, I wish i could give you an amswer to help you, but Bluto has a good idea and buy the 21 hours and fly like hell for a couple days and send in another update, that's all you can do.
all that turbine time is great! posssibly try to get a muli-engine job, or if where you are flying the Caravan has a twin, fly the twin.
I think they would consider you but more likely with the minimum achieved.
take it easy.