Very nice build, MDR Maple! Looks very similar to the way I approached my barrel build as well. Barrel builders unite! ;-)
-Scott
2017: Found a new addiction/hobby!: 6 taps, Coleman stove/turkey fryer, graduated to barrel arch, 1.75 gal
2018: Increased efficiency - 22 taps on 3/16 gravity vac, 10 buckets, homemade extended barrel arch w/ firebrick, warming pan, 20X30 baffled pan, small home-built RO, 11.5 gal
2019: Same as above now with AUF, home-built float pan, gas sap pump, fewer fire brick but more insulation, maybe a few more taps if the wife lets me. ;-)