if you can get into the parts cheap i think it is worth way more than 100. the only external moving parts to get damaged are the pump and motor. if the pulleys are undamaged and run straight when you spin there is nothing else that can't be easily replaced to make it whole again. i would bet most of it off the shelf locally as well. i think you would be safe being at theat 500 or less with parts and unit total. whether it is 100/400 or 250/250 really doesn't matter.
i would imagine it looks pretty decent or you would have already walked and walked fast away from it.