Правки в смарт контракт Solidity NFT

We have already made a smart contract for the NFT lottery - https://github.com/haidaralimasu/brownie-lottery

But we need to make some edits.

We need 

1) To connect smart contract to our website, made on WordPress - https://nftlottery.fun/

So the user can mint NFT from our website. 

2) When tickets are minted - they should appear on Opensea in our collection

3) When all 100 tickets are sold out - the smart contract should define a random winner and transfer to his wallet 1 Eth. (and change his ticket to a golden one)

That's all. How much time do you need for this and what price?