I want to make an RC controlled wagon that could carry a cooler or maybe some bags of fertilizer. I can build the wagon and the steering assembly myself but my question is what motor would be the best for the job? The cheaper the better. I thought about using the set-up from a power wheels toy, has anyone tried making one of those RC? I added some pictures, using the current steering on the wagon what would steer under load better? a geared method with an additional motor or a strong servo linked to the control arms?