Hi Brett: I could have e-mailed or called but thought your audience might have additional input. Would it be possible when my Donkey Repair Yard kit is available to purchase an extra Donkey Engine? I'm thinking I'd like to have a section on my logging HO railroad where a Donkey Engine and Spar Tree are being used to drag logs up a hillside to a loading area to be delivered to the sawmill. I have some wood pulleys that look about right from an old wood ship model my father made back in the 50s. If not possible that's fine just a thought. I could take the one from the kit but then the poor ba-----s at the repair yard won't have anything to work on!