Nft game development

Hi I am looking for a blockchain developer that can connect my in game store to the blockchain... the task is the items in the store should be purchased by the my token and after purchased it will register as nft and transfered to the metamask wallet of the player

the game is currently in works... will be implementing the shop by next week so I am currently looking that once the shop is finished it will be connected in the blockchain... just incase how much would be your service in relation to that... thanks