Integrating Wrapped ERC20 with a Sushi-style DEX

I have deployed the current version of Open Zeppelin's ERC20WrapperMock. I even tested my token and made sure I was able to depositFor() and withdrawTo(). My issue arises while conceptually trying to solve for its integration into my sushiswap dex fork. It is written in solidity 0.6.12 and the contract is basically what is found here. Any ideas?