Funny enough, after reading your post, I was looking through a book I got from my college library, a guide on tomatoes in north america, book was published in 1977..
I just saw that plant today in my pages, it grows fruit that look like egg shaped tomatoes, they're from peru, been cultivated by the natives for a long time and the book tells me they do alright in NA, so I think you'll do fine.
In fact, I'm thinking I'm going to get one too, they take 2 years to establish themselves according to the book, and back then atleast you could find plants. I'm going to look for plants to speed the process.
Sounds cool keep us posted.