SPL404: native fractionalization of NFT through fungibility features

We need to create a Solana token that will have the following features:

1) There will be 10,000 NFTs

2) There will be 10,000 corresponding fungible tokens (FT)

3) There will be an escrow account (EA)

4) every time transfer of full FT is made from account A to account B, corresponding amount of NFTs (randomly selected from account A nft collection) transferred from account A to account B

5) vice versa, every time NFT is transferred from account C to account D, corresponding amount of FT is transferred as well the same route

6) for every fractional FT remainder in all accounts there is an NFT in escrow account.

6.1) every time account A receives fractional FT such that account A has more full FT, account A receives NFT from escrow account (Account A had 2.79 FT, so he had 2 NFTs. Then account A received 0.25 FT and total balance is 3.04 FT, account A receives 1random NFT from escrow account)

The concept is inspired by ERC404 experimental token standard. Want to onboard this standard on Solana.

acceptance criteria:

1) smart contracts created and tested with above mentioned functionality 

2) peer to peer smart contract review and deployment 

please, give me your estimates on cost and time!

Thank you for your attention!