Smart contraft erc 721

Hello,

We need someone to write a ERC 721 smart contract for our NFT collections with the following:

i) There will be a Pre-Sale
ii) There will be a White-list
iii) Max NFT Minted on Presales 12,000
iv) There will be a Reveal Mode
v) Reserved NFTs for social media
vi) Airdrop - for after pre-sale
vii) May include Multiple Wallets Withdraw
viii) Design a Mint Engine
ix) Upload to opensea

Please advise us at your convenience.

Thank you