Checked the chain on the Faran 2.5 and decided not to replace it. It hit the 0.5% marker, but not 0.75%.
Did replace the front tyre that was slashed on an audax earlier and running tubed as a result, new Terravail Canonball 40mm, as per initial fitting, seated no bother, the easiest tubeless I've tried so far. Also fettled the setup for audax, including helitape on top tube for the snack pack, loading the seatpack and deciding what to put in the handlebar bag.