I'm trying to appease the gods and moving the planets so I can try to attend.....
Noggy - try the A40 out of Abergavenny, all the way past Ross-On-Wye, jump on the M50, until J2. A417 south until village of Staunton then cut across some B roads (heading for Cheltenham), cut through the metropolis of Cheltennam, back out onto the A40.
Just a thought - its a route I've used (and abused) for years........