4501 never had a stoker until TVRM added it and a feedwater heater 4(??) years or so ago.
If I remember correctly 4501 currently has a modified tender from a Central of Georgia K class "Big Apple" 4-8-4. 4501's original smaller tender while on the K&T is behind Southern (TVRM) 2-8-0 630. 630's smaller tender is at TVRM not currently being used (or wasn't)