let me know if you want some more loops to add to that one, heading west over to the Brecon Beacons or east into Gloucestershire.
the chip shop in Monmouth on my route is pretty decent
Yes! I mean including form where I live....factor in a decent route from here and it would be about 180-200 miles, e.g via Hereford or something.
The road missed in the OP, the A466 from Hereford to Monmouth is a corker. I rode it last weekend on the way to that chippy. Somewhat of a circuitous route to get there from Cheltenham.