I would suggest you haul the sap home and boil there if at all possible. Do you have a p/u or trailer to haul with? Doing it back home means you could finish on Monday or Tues. if necessary without having the 3 hr. round trip drive.
Just for some perspective, my 1st yr. I started with 29 taps on a 2x3 flat pan (a hobby size). As that seemed real easy, I started adding taps because I seemed to have plenty of time. I eventually got up to 70 taps, then the trees really turned on. I was collecting and boiling every day and when the trees "turned on" I nearly drowned. I got to the point that I was boiling 18-20 hrs a day for 4 days in a row.
If you are only able to boil on weekends, you will be trying to boil 7 days worth of sap in 2 days. When it flows well you will have more to boil than I did doing it daily. If that is your only option, try to find a local producer near your taps who will buy the sap daily (will your uncle haul it?) for the M-W flows and then you boil the Thurs-early Sun. sap. That way you can keep fresher sap and not get drowned in it.
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.