What is best way to reheat Chicken Kabobs?

I am hosting a dinner party for 40 people and want to make Chicken Kabobs. I would like to prepare them ahead and reheat at the appropriate time. I was thinking of grilling the chicken and then assembling the Kabob so that the vegetables do not get soggy. What is the best way to then reheat these so that the vegetables get cooked but the chicken does not dry out?