Nice looking set flyernut. Looks like all good paint. Now for those loads. So many variations plus repro's. Could be a challenge. If it were me I'd fine the proper loads and worry about variations later.
Thanks for the details. The track, transformer and other supplies are probably long gone. The locomotive shell was stamped May, 1952.The 1952 521T contained those items plus a No.1 transformer, 12 pieces of curve track, a 704 manual uncoupler and the 690 power clip. The engine was made in 1952, it has the 3 spring trucks on the tender.