Russell, If I was starting sugaring today, I would certainly consider doing it the high-tech way with RO & a smaller evaporator. Even though my sugarwood now comes from my sawmill as a waste product; it's still quite an effort to get enough wood stacked in the woodshed to make my 120 gallons.
When I bought my 3x10 in 1989, it was only $3500. My total investment in sugaring, including lumber for the sugarhouse, tubing, tanks, evaporator, filter canner, etc was about $8,000, and I was able to make it back in the first two years. It seems like equipment costs have tripled and the syrup prices have only increased 50% or so.
I am however, contemplating a vacuum system; though it goes against my Luddite nature. Right now, I have only one motor to worry about (my sap truck) and more mechanical things are just more things that can go wrong. If I can get the power company to give me a reasonable rate for service, I just might make the plunge.
2012: Probably 750 gravity taps and 50 buckets.
600 gal stainless milk tank.
2 - 100 gallon stock tanks
one 30 gal barrel
50 buckets
3' x 10' Waterloo Raised Flue wood fired evaporator w/ open pans.
12" x 20" Filter Canner
Sawmill next to sugarhouse solves my sugarwood problem
Gather with GMC 3500 2wd Pickup w/ 425 gallon Plastic Tank.
Been tapping here in Lyman NH since 1989 but I've been sugaring since 8 years old in 1968.