Very nice 'set' Ace!
Prior to Christmas I acquired a 333 with the plastic version of that tender, but Santa Fe. Cleaned it up good, lightly lubed it and around the Christmas time 'Living Room & Dining Room RR' she went!
I love the cars! And, wouldn't mind finding the same ones to put behind my 333. Maybe with a Reading caboose. (Does anyone hear on the Forum know if Marx made a Reading tender?)
I hope you find all the little things to complete the engine and cars.
Henry J
No Reading tender - just NYC on the tin tender with the 999, a diecast NYC tender for the 333, and Southern Pacific, Santa Fe and NYC in the plastic version of the diecast NYC tender.
There are neat 7" tin SF, SP, B&O, Monon, and NKP cabeese that can be converted to roll on 3/16s scale trucks - they're not too hard to find.