It seems to me that the FN owners could develop a very successful tourism operation on part of the land. A longhouse with a few totem poles would be very attractive to visitors. With a chance to partake in a salmon dinner, with bannock, this would be a big draw. I'm not advocating for some Disney-esque phoney tourist trap. This could be part of a larger development.
And what would they do for the 8 months of the year without tourists?