Hola Bernardo,
Yes, it is easy for me to obtain turrones anytime here in North Florida. I buy it from a Spanish/Cuban market in Gainesville, Florida, I imagine they bring it from Miami. You can also buy them online from LaEspañola.com, Tienda.com and Cubanfoodmarket.com.
But, your idea has great merit, the only problem would be shipping. It is expensive! But if you sold goodies that we cannot find locally it would be a go. You may want to test out your idea by selling through e-Bay, just to see if there is a market big enough and wealthy enough to afford the shipping. I buy a lot from Spain(I'm not wealthy!) through the Spain e-Bay site!
I LOVE turrones. Navidades without turrones is just not Christmas!
I love Mazapan the most, Alicante and Jijona. The chocolate ones are also sinfully good for you, and because they are turrones, they do not have any calories!