OK,
Feeling a little bit guilty for being a miserable bastard, so below is what I will bring. I intend to bring a complete old school early '90s style system, CD based, none of that streaming or computer audio zillion-bit warp-speed upsampling flimflammery.
NVA based solid state amplifier, with increased feedback levels, Zobel and inductor protected output stage. So really it's no longer an NVA.
I might have renamed it the 'WHAT THE FECK HAVE YOU DONE YOU EEJIT!' by the time of the meet, because that's probably what RD would have said upon finding out what I did to it.
Mission 731 speakers
Drainpipe stands (incredibly wobbly.)
Linn Mimik CD player.
I can bring the SE valve amp with feedback if anyone is interested, but it'll have to be connected to someone else's (very efficient) speakers. The Missions are nowhere near efficient enough for it to be used with them in that room. It would not be fair to the poor thing and would certainly fail to show what the amp is capable of.
Before anything can be improved, it needs to be measured first.