My FI is Spanish, and there's just one person in his extended family who speaks a bit of English. My family is from the States and I'm the only one who speaks Spanish.
How do we do invites, ceremonies, etc? We're doing two weddings due to the fact that there are family members on both sides can't/won't travel. But, there'll be Spaniards at the American wedding, and Americans at the Spanish wedding. Do I just say "oh well" and let those out of their home country enjoy a ceremony in a foreign language? Do I translate my own wedding? Invites are expensive and small - one set for one family, another for his family? This could get messy
Best of luck with all of your planning!