Not sure where you are in Indiana or how many pounds you are looking for.
Near Bloomington, Oliver often sells grapes. Bulter and Mallow Run are already harvesting some varieties. Check with Huber. They also may be able to point you somewhere else down there to get some.
North of Indianapolis there are fewer vineyards. I'm not going to have extra grapes this year to sell. You could check with Daniel's Vineyard, Dulcius vineyard and Satek winery.
If you don't mind driving some, you may be able to pick up some cab franc in Michigan. Norton in Missouri and many varieties in southern Illinois.