Weddingbee boards

I am running into a stumble with my Mr and his mens clothing.

We are getting married in Jamaica next April so it is going to be warm. Our colors are black and white and the girls will be wearing black cocktail dresses. I want it to be somewhat formal but I think a black suit will be way too much for them. Even though the ceremony is taking place at sunset and the reception is indoor, I still dont think its fair to put them in suits.

How would you dress them? fh was thinking of linen pants and a black button down with the sleeves rolled. But is that too casual?

Here is where we are getting married..... its the aqueduct ruins on the golf course in Montego Bay....

i was thinking of maybe these in black and a white button down.....but what shoes?

fh is NOT a flip flop guy.