Re-motoring a 4-6-4 early 1950's Amer. Flyer HO steamer

I posted this question before and I was corresponding with a gentleman about my problem, when my computer went down. I lost all track of the person so I must start all over. I have a 4-6-4 Hudson Amer. Flyer with a chugging/smoking unit in the tender. I either need someone who can re-motor it for me or tell me where I can send it to be repaired.