Build a system around SDA monitors

Forumnites

I wish  to build a system around the SDA Monitors i purchased from Eddie on the forum.  I have received a lot of good advice up to date.

SS amps+ valve pre,
Valve amp + valve pre

I'm going to give MC 601 MB + MC50 PRE a listen. Any thoughts on this?
What about Bryston 7B ST and a Valve pre  from audio research?

I need to lug those monitors around a bit while in gauteng and test some amp + pre combos.

Any advice will be appreciated

Cheers
Adrian