Chuck,
It's interesting that you said that because the prior owner had this 2230T tender and a #231 prewar switcher that I purchased separately both on eBay. The #231 locomotive had 2 holes drilled through the diecast running boards along the boiler, one hole on each side of the boiler, each one exactly across from the other. I never ran an outside third rail set-up, but I always wondered if the locomotive at one time had those holes drilled for such an outside third rail set-up.
Tom