What you have planned is great. Since it will be on a stand, put some steel wool in the head ports !
One year with our sprint car engine, we put it back in the sprint car & fired it up. Something blew out of one header, to our amazment,.....it was a frickin mouse.
Ever since we put steel wool in the ports, we've never shot a mouse out like a cannon !
They hate the taste and feel of it.
Do the same if headers are left bolted on.