Thanks for all the input.
Confirming what I'm after. A clean slate that I can add what ever I want to it. As I've played MB heads a lot over the years, I'm kinda looking for that sound again.
Cabs wise, I currently use Vanderkley 112 MNT, which is an amazing cab. I tried out a Barefaced BB2 recently & really liked it a lot. It doesn't have the ' in your face ' tweeter that the Vanderkley has so I'll have to get used to that but it is a very even sound from bottom to top. Really kicks in a live situation. Kinda hope a can afford to have both cabs [size=4] [/size]
For those mentioning the Streamliner Genz amps - Tried one, didn't like it. It's a very cool amp but it confirmed that I personally don't get on with tube amps that much. In an ideal world & a deep wallet, I would have one around for that sound & loved the cool blue glow.
Think I'm leaning towards the Markbass LM800.