Beautiful dress and totally unique!
We aren't fans of the baggy linen thing either, its not my FI's style at all! Also, we wanted something more formal with no flip flops sort of thing.
I can't post what I am wearing just in case the FI snoops! LOL! But for the rest of our party....
the fianc© is wearing something very similar to this with a grey vest and pants and white shirt and purple tie:

and our guys are wearing grey pants the same as FI's and a purple shirt the same colour as our girls' dresses, without the vest. The vest style with no jacket over top, in my opinion, isn't for all shapes of men, but if the fit is right it looks fantastic! I have also told them that as it will be totally hot there we can casual-it-up a bit and they can roll their sleeves up, but I will be pre-rolling the sleeves so they still look clean! lol!
My girls are wearing this dress http://www.henkaa.co...ml#.UH12MmgTs00 In case my link doesn't work here is the pic as well. It is convertible so I figured the two of them can each find a way that best flatters them and wear it that way and be comfortable.

Happy Planning!