Thanks again John!! I'm hoping to take a look at this in the coming week. Your information is most appreciated. Can you answer two more questions for me?
1) if the wal-mart 'super-tech' oil is okay to use, should I continue using what I did OR should I switch to the Heavy Duty Tractor and Transmission Oil (http://www.walmart.com/ip/Super-Tech-Heavy-Duty-Tractor-Hydraulic-and-Transmission-Fluid/16213442). I don't currently have a manual (obviously) and I want to make sure that whatever oil I use is okay for this system. Concurrently, how much gear oil should I mix?
2) I assume there is a gasket between the pump and the tractor body? Is this a part that is available or can I use the 'gasket in a tube?'
Thanks again. As mentioned earlier, I am hoping to purchase a 1070 late April but for now the 800 is my work horse. I'd sure like to have the hydraulics working well before I start working dirt!