Hi, your project really attract me.
I have developed once the trading bot to operate with PancakeSwap (based on smart contract).
And also, I have once developed the smart contract dapp using the solidity language.(using Metamask wallet)
Of course, the front-end was developed in Javascript.
I have deep knowledge in Blockchain , Ethereum, token and also Swap.
Your project in similar with pancakeswap(swaping tokens. ERC-20 is standard in there)
Gas fee is one of serious issues on every swap.
I think 1% fee is relevant for that.
If you chat with me, you may find me as experienced developer in Swap.
I can work with your project now.
Hope to see you soon.
Thank you
-Them Ho-