Cabs are coming along nicely! Your 416A's look to be in great shape--very similar to the green 16 ohm 416Z's I had in my 846A Valencias -- and about the same age too. Your date codes ("Numbers on the baskets read 391845 and 391745 respectively") indicate the woofers were manufactured in November 1968 and November 1967 respectively...... Looks like you'll be all set once you secure another 802C