Full tracking analytics for funnel

Right now there is a limited amount of events that can be tracked for Facebook and GTM. Would love the ability to track the full customer journey through a funnel including bumps and upsells so we can better understand value of customer, drop offs, intent to help improve the funnel. Right now flying kind of blind as Meta isn't reporting the total value of a funnel because of lack of tracking from surecart. Funnelkit does this well.