Ahh, I think I see more clearly now. If they will all be the same, you might really want ERC20. You would be able to use a single uri (which you could also do in the 721) and your contract would be much simpler. Also, I don't suggest you go off on the '721 tangent' at this juncture, it's really quite the same interface so won't help here.
Is there a strong reason you want the off-chain metadata to have different 'names' for each token? To do this in 721 you'll have to generate those 1000 .jsons; obviously, you'd build/use a tool to do so programmatically. However, you could add the name functionality you desire.