Smart Contract Consultant Needed

Hi,
We are creating an NFT storefront where digital arts are minted and traded. Our team is able to handle the front end design and development, but for smart contract we require a consultant.

Firstly, i would like to hire a consultant for few hours to advise us what is the best approach based on our project. e.g. Should we use Opensea contracts or its better to start creating a customise one ?

To give a brief intro we want the smart contract covers the basics such as minting, transfer, auction and sale. Also, enable us to lazy mint and use EIP-2309.

Thanks

contact me via telegram @capsus69