Save the Dates

My fiancé and I are having a destination wedding in the Caribbean. Our date is August 1, 2025.


We’ve already created Save the Dates that are prepped and ready to send.
Our original plan was to send the Save the Dates out by March 2024, roughly 1 year and 5 months before the wedding. Since it’s a destination wedding that will require passports, we’ll send out invites about 10 months before the wedding.
However, some of the Save the Dates need to go abroad, to family members out of the country. We recently learned that my in-laws will be traveling to said country for the Christmas/New Year Holiday.
In order to save on postage, we thought of maybe sending the save the dates intended for those family members with my fiancés parents, so that they can hand it to them in person. However, by that logic, they would receive save the dates 3 months earlier than intended, which feels way too early.
I also worry that if family starts to talk, people will be offended that the abroad family received save the dates before everyone else.
Looking for advice - should we send those save the dates with my in laws or just suck it up and pay for postage later? Thanks in advance!