What rpc tier do I need?

I want to deploy a simple nft erc721 minting dapp to production. The user just connects their wallet and then calls mint, nothing fancy.

When I look in the console on my dev environment localhost, I see a few different rpc calls when I connect. One to get the wallet balance, one to tell the user how many nfts have already been minted and then when they mint one to call the contract mint function. Since it’s a dev environment I think there is some duplication in these, so maybe 5 rpc calls per user?

When I look at Infuras free tier you get 100k calls a day for free. I could also upgrade to 200k rpc calls a day for $50/month.

Given I only have about 5000 nft tokens, I can’t see me needing more than 5000 x 5 calls = 25k calls on mint day.

With this in mind would the free Infura rpc tier be ok or should I definitely upgrade for speed/other reason ?

Thanks