You'll need to figure out if you have the original water tank (they came either galvanized or aluminum) OR if it has been replaced. If it's original, you likely have a pressurizing pump. If the tank has been replaced you likely have the kind of pumps you can get on ebay. A photo of the tank and pump would be helpful.
Aluminumbskull with Led Balloon in Drag
Birch Plywood and Aluminum go together like
Peanut Butter and Chocolate