Campaign Influence / Multi-Touch Attribution with Campaign Member Status

According to the documentation here: https://resources.docs.salesforce.com/latest/latest/en-us/sfdc/pdf/campaign_influence_implementation_guide.pdf

Campaign Member Status is not factored into any of the out of the box models. Has anyone found a workaround for this besides creating a custom model and automation from scratch?

We send emails out to prospects, and for example they may only interact with 1 out of 3 emails, so we wouldn't want to split the attribution 3 ways - we'd want 100% attribution to go to the campaign that they actually interacted with.

Thanks!