If we assumed something more favourable, say 12 batches an hr, so 5 min per batch, without propane:
12*6 = 70
70 * 1050 = 73k$
80(coke per 2x pyrex) * 12 = 960coke
960*150 = 144k
144k-73k = 71k/hr made on drying coke.
with weed, youll be making 71k+68k=139k.
If its possible to sustain the...