Build it into the cost of your product for these customers. Are you charging enough? Consider charging more! What’s your cost per hour of the person filling these out?
Ah their pricing was different when I was using them, but I recommend reaching out, they were very flexible and easy to work with they might do something custom for you.
If only half of their landing page is true about time saving, then it earns this price back already if you do only 1 assessment per month. Every further one is bonus...
OMG, $400/month lowest plan.