I have to say Mark that we too leave plants in pots for protracted periods when it is absolutely certain they be better in a trough.
For small plants - such as we order from Gerd Stopp - I find Tesco mushroom boxes ideal as a first step.
I haven't looked at each of the plants you list but I would say they could live happily together in a reasonable size trough.
Plants generally like company, and with a fairly gritty general compost they would certainly thrive together.
You do realise I hope that, as soon as you have despatched them to a trough, you will immediately stock up on more pots and generate the same problem all over again!

Best of Luck,
JohnnyD