AAaaaaah! So much input! (love these emoticons!!) thank you so much guys!
I need some time to process all the comments and figure out what suits my needs!

Meanwhile I have some questions:

Actually, I'd suggest keeping the 2 x Mixup version, or maybe consider substituting a pair of Happy Nerding PanMix Jr.s for the Mixups, which would then give you panning over each mixer input. Summing down those into the Ciao! would then make a lot of sense.
-- Lugia

What is the advantage of panning my audio signal? Should you use it to create more "space" in the sound or more effect wisely or am I seeing this wrong? :)

It's worth noting that the Chronoblob 2 is 2hp wider than the original, so if you want to keep that rack configuration pick one up second hand while you still can!
-- JohnnyCogs

I considered purchasing the stereo version but I don't see the win of a stereo delay compared to the loss in hp and the extra investment.

Quattro Figaro can sum 2 stereo channels together (A&B,C&D) and be used for panning with it's normalled CV inversion.
-- JohnnyCogs

Can you explain this more in detail please?