Hey all, I’m a part of Aptitude 8’s product team A8 Labs. We’re currently in Beta for a new SLA Tool called Timerman SLA. It may help solve your problem as it allows you to assign SLA Policies to both tickets and deals via workflows. It also tracks time in each stage down to the minute and lets you create reports/dashboards within HubSpot!
We’re releasing the app to beta users so shoot me a message if you’d like to learn more!