Maybe allow users to set it up for free, and go through one project with one client with the tool. If it makes the process amazing people might be in a position

Maybe allow users to set it up for free, and go through one project with one client with the tool. If it makes the process amazing people might be in a position where they would like to pay for it. You could include a nudge to increase their pricing for that project to cover X months of usage of the tool (depending on project size I guess).