I wish I would have some tips.
I wanted a plant myself...bought seeds and managed to germinate some..potted, growed them on..first winter they stayed in unheated GH...they were not hardy enough.. ::)..and it definately didn't get down -10.
I hope somebody else would have something more positive to tell you. I would love to taste the fruit before attempting to grow from seed again..just to see if they are nice enough for the trouble.