I am also coming to the conclusion that I am looking for a Marshall, and not a Vox.
A local company hand builds valve amps at reasonable prices. Would the spec below sound Marshally in your collective opinion?
"18 watts of cathode biased British tone
12AX7 (ECC83) preamp tubes
EL84 power tubes
Aluminium chassis with perspex faceplates.
one channel features plexie style tone controls with gain, treble, bass, mids and master volume"
The company is Mars Tube Audio, and they do clones of a few classic designs:http://www.marsamps.co.za/product/18-watt/
They can provide them as kits, fully built amps, or just the fully built electrical bit - so you can design your own arty case. Which could be fun.
Shipping to the UK might cost a bit, but locally the fully built electrical bit costs about 10% less than a Chinese-built Origin 20 head.