Your Not Invited🤷🏽‍♂️

So I'm pretty sure this is a common problem but I'm not sure how to work this app all the way to search properly so I have started a new discussion.
Can anyone tell me the best way to tell family they are not invited to the wedding?
My fiance and I are in a long distance relationship...she lives in Jamaica and I Barbados. We will be getting married in Jamaica because we will be living here so not only do I have to fly but so does everyone who comes from my side.
I don't feel right having people pay all kinds of money for plane tickets and accomodations and all of that to come see me get married and not even feed them. So all my invitees are coming to both the wedding and reception where as some of hers will be ceremony only invites.
But I have a large family...many of whom have been inviting themselves. Nobody is chipping in to help pay so it's just me and my lady footing the bill. We jus can't afford to invite them.
It's not bad blood or nothing its jus that we don't have it to pay for all these people's food.
So how best can you tell family members that they are not invited?