You are correct in that it's the Indian not the arrow, and you can hunt happily everafter using ammo you can find at the local store.
All anyone is telling you is that if you impose that limit on yourself, there's no rational basis for it.
It's akin to looking for a new vehicle and not getting what you want because the local one-horse car dealership doesn't have it on the showroom floor.
You came here asking for advice, and you got it.
