The Clausing manual sows the motor and intermediate pulley mounted with the largest wheel on top. I’m not sure what you meant.At $800, buy it before the seller realizes what he could sell it for. I see them periodically on CL and eBay for $1500-2000.
FYI, the intermediate pulley is mounted upside down in the pictures. Also, I would ask if he has the rear belt guard.
I own the same mill: it's a joy to work with.