A and B guest lists for destination wedding

So I haven't seen anything recent on this topic but I'm having a destination wedding and my venue can only hold 82 people...i have 95 guests that i would love to invite. The few posts I've seen mention it's not rude to have two lists if they don't know. The big wild card is my family coming from out of the country... the bridal party alone is big so they WILL come. Is it ok to send saves the dates to only the A, and then invite the B if i find out from the A they can't make it? It would seem to me that being destination, they would know pretty early if they can come or not as hotels are pricey and i'm asking them to reserve on the block early to get the deal. Has anyone else done this? thoughts or advice?