Collection: American Frontier 1876 - Little BigHorn and the Far West
These are freestanding bundles, but the American Civil War Paperboys book from Helion publishing, available instantly as an E-book, will offer you some additional appropriate figures, a covered wagon and a 2D artillery limber.
The Native American figures are mostly based on the great work of the late Richard Hook in his two classic Ospreys on the subject. I thank him for his scholarship and friendship.
An excellent and good-value American Frontier town ‘Whitewash City’ is available to download from Wargames Vault.