Reverse grid trading bot for crypto exchange

Hello,

I want a grid trading bot for the Gate.io crypto exchange. I currently have a working grid bot written in MQL5, and I want a similar bot implemented in Python.

The MQL5 bot can be translated, but the codebase is large and it was not designed to be easily ported to Python. Therefore, I prefer that the final Python bot preserves the same core grid logic, but is implemented cleanly in Python rather than doing a direct line-by-line translation.

Before delivering the final product, I also want a complete backtesting environment to be set up. My initial preference is Backtrader or Freqtrade, but you can propose a better tool/environment if you think it fits this project better.