Tandem buggy that fits buggy pod and buggy board?

[pirateship]

I'm searching for a tandem pushchair that can be used with the buggy pod but can also have a buggy board attached when needed - not at the same time, I think that would break my back! It's just that there are days when I'll have three under twos, hence the buggy pod and days when I have two under twos and a three year old, hence the buggy board. I've started researching but it's hard enough deciding on a normal pushchair let alone one that fits a pod and a board! I'm not keen on Phil and Ted's.
Can anyone help?
Please.......! Or am I asking too much? If so, what would be my best bet?

[blue bear]

My friend has this arrangement on a marco sky tandem (look on 2 became four website)