Devin, I listed a Kowa Super 66 kit for $425 plus shipping in the classifieds over the holidays; I still have it—80 & 250 lens, 2 filmbacks, 3 VF, grip, maybe a Pola back too. It’s a beast best on a tripod.
I’ve consolidated to lighter MF carries—Fuji GF670 and GA645, Rolleiflex 2.8D. As Huss points out, a Fuji 690 gives you the most negative to work with. I have never gotten a bad exposure with the GA645, nor with a Bronica RF 645–both have good metering, portrait orientation. Fuji GA/GW models should be cheaper than Bronica RFs.