I've personally never tried this but I would consider trying to ship a handful of fry if you would be interested in building a holding pen/cage? Getting 6-8" fish to your location would be a logistical nightmare..
OR.. I could grow some fry to 2-3" and try and ship. You would still need a grow out cage of no larger than 1/4" mesh. Wow. This would be a heck of an experiment.
I'm still waiting on a call from my bud on the fingerlings, maybe I could try to ship a few of those.
Before we go too crazy here I want to get a better idea of the number I will-for sure-have to play with.
I think you more than likely have the forage base to handle a few, sounds like, and I'm guessing in your climate, if the temps are truly doable, they'd be 12-14" by Late November.
The farthest south population I know of that so far has been successful is near Abilene, TX.
I'll do some thinking about how we could make that work!