I don't want to discourage you but fair to assume that your users will have access to tools at brokers (or reasonably priced 3rd party like tradingview) that ca

I don't want to discourage you but fair to assume that your users will have access to tools at brokers (or reasonably priced 3rd party like tradingview) that can do dividend portfolio backtesting/construction, I would need to see total returns/sigma of same.