As Peter says we will all be happy to assist and add comment based on our experiences
So take a look at the links indicated by Peter and then come back with questions specific to your case
PI weddings are in many respects the same as UK weddings but there are small differences
as an example
we had a civil wedding at a local resort - the mayor came to the venue with his retenue and we married in the garden The service was followed by the reception in the garden
Our wedding invitations included a small note indicating the number of seats we had reserved for them .... it might seem obvious in the UK that if the wedding invitation is to John and Jean Smith are invited - two people will come
It PI - it would not be unusual for John and Jean to bring a friend(s) or all their children ... we were catering for 100 guests so if all the families brought a guest then the seating and meals planning would have been a disaster ...
so tell us some details and you can avoid many pitfalls -
As payment we will expect to see the Happy Day Photos in the Forum Galley
Good luck for May