If you have two floors, you will want two indoor heads. The number of outdoor units is up to you but keep in mind the efficiency goes down when you start putting multiple heads on one outdoor unit. Also, don't oversize the system. They modulate and cover a pretty large range. I have two 15k...
Picked up this old Cincinnati last weekend but can't find much info on it. It's a 16" bench top sliding head press. The only reference I could find was a declassified military document where they used this model for testing drilling metal. That fits with the US Property marking on the info plate...