Lots of questions. I'll try to answer some of them as best I can, in no particular order.
Using a guzzler trying to pull sap may work, but I doubt it could move sap that is over 20-25' below the pump, especially in a 3/16. The maximum lift with perfect vacuum on a std. air pressure day at sea level is 29' and a few inches. If the atmospheric pressure drops, it is less. Then comes the question of line friction. Even if it would pull sap thru a 1" pipe, it may not thru a 3/16 nor even a 5/16 because of line friction.
Pushing the sap may be your option OR get a good vacuum pump and use sap ladders.
While I pull 3/16 lines from 5 and 6' below the main and then pull it up about 12' above the main, across the driveway and then back down to the mainline with 26-27" of vacuum on it, I've been told by experts that I lose some potential to line friction. I am OK with that, but my lines when running are maybe half sap and half gases, thus my lift is really only about half. Once I cross the driveway, the 3/16 slopes down at about a 35 degree angle to the mainline too, that helps too, along with the 26+" vacuum on the mainline using a piston pump, nowt a diaphragm pump. In your case you said you would be sucking the sap from each of the tanks, thus no air, just sap.
I may try to answer this more, later.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.