Rigid tapping not standard. It believe it was a option. When I get a chance I will verify that.
Pressure washing OK but watch out for X axis motor. Oil the linear ways afterward.
Pallet system = $$. Seen it installed on a VMC1000 but not a TC-22. Took some control modifications to accomplish. Makes your machine unique. Hope you get schematics, etc. And back up your hard drive!