Aren't there some cabins not far from there that have the river running confront of them that u can rent

Lots of cabins in the area. Look up tellico plains on vrbo and air b n b.

Yes

In Green Cove

Green cove motel on tellico river a little way past bald river

Yes there are.

And they are relatively cheap to rent

Yes... there are cabins to rent right inside Tellico Plains.