Hi, MT5 integration files are available now on MyCoder, https://mycoder.pro/apibridge/jump-start-system-trading-with-mt5/.
Also, I have some good news to share. Currently, you can find approx 25 free algos for MT4 https://mycoder.pro/apibridge/mt4-algo-trading-faqs/ All of them will be available in MT5 also after a couple of weeks.