Sunset Models / 3rd Rail has done a number of locomotives with vanderbilt tenders. For B&O fans they did the Q-4, T-3, and S-1. Westside did the Q-4 with a vanderbilt. Sunset also has done the correct C&O vanderbilts. Sunset / 3rd Rail has also done Great Northern vanderbilts. So did Weaver Models.
Sunset / 3rd Rail did the B&O T-3t vanderbilt tenders as extra sale items as well as doing the T-3t locomotive / tender.