Happy to have you here in the Community, rkerr.
I'm happy to help share information about changing estimate template.
If you'd want to remove the Service date field on the Estimate template, here's what you'll need to do:
This will point you in the right direction, rkerr.
For additional reference, I'm attaching some articles that you may find helpful in the future:
I'd appreciate if you can update me on how it goes. I'm always here to offer additional assistance. Have a wonderful day ahead.