OK....the answer to the oil pump question: YES!! One pump pressurizes both engines easily. I used my removeable access plate, and a modified pump sprocket (big nut welded on), which allowed me to run the pump with my air drill. I kept adding oil until I'd found all my pressure leaks (left a few lines loose in the excitement) and the pump quit sucking air. With 2 gallons of oil in the engines, it maintains 40 PSI with the air drill anywhere from half speed to max (I can see the bypass open up and flow oil). With the air drill turning over slow, it makes 5-10 psi... I doubt I can make it idle that slow.
I had a few weld pinhole leaks, on my primary drive cover and my home-made deep sumps, which I fixed successfuly with FIPG. I had to lay the bike over, to get the oil away from the pinholes, and then blew brake cleaner through the holes so I could fix them.
It could have been worse!! Now it's time to mount up the electrics and get this mess fired up.
JimL