yeah, you’re not the first to seek those here. they might even be here somewhere, but I don’t recall running across them.
most of your assumptions seem on point, but I don’t believe you’re actually looking for the numbers you think you are…
it’s not really the solubility limit you need to worry about. it’s where the xxx liters of solvent (tincture) you leave behind contain enough of your target to require you go fetch them…and that really depends on your operating costs/efficiencies.
is it worth you time? then you cannot leave it behind… if it’s not, then keep moving…
you also want to get the cannabinoids out efficiently, and its seems reasonable to assume that as the cannabinoid content of your tincture increases it will be less inclined to pull more. while not at its absolute carrying capacity, functionally, it’s no longer as good as it was on the first or third bag. I saw a dramatic drop-off on bag 6 and 7 at -40C/CBD.
knowing how much solvent you’re leaving behind simply takes weighing the bags on the way out. my recollection for the CUP was on the order of 6lb gain on the CUP-30. which is coming up on a gallon of ethanol at 6.8lb/gal
knowing how the solubility changes with temp is helpful, but again, it’s not the whole picture, because of all the other things that come along for the ride as you raise the temp.
with the right post processing steps (see X-Spiral: Affordable Membrane Systems for the People!) you can extract warmer without giving too much thought to those issues.
if you’re considering that route, you might also want to rethink your solvent of choice.