Finally found 4561 Railway Express for an ok price at the thrift store. It even included 10014 Caboose as a bonus. So far it's looks mostly all there. : r/LEGOtrains
MOC] Virtual - 4561 upgrade to locomotive and Club Car - LEGO Train Tech - Eurobricks Forums
Railway Express - LEGO set #4561-1 (Building Sets > Town > Train)