City hall x traditional ceremony and reception

Hi everyone!!
FH and I met while I was living in the US and be proposed close to our 2y anniversary. We decided it’s be better for us if I came back to my country to get a k1 visa so we can get married but the thing is we’ll only have 90 days to get married when I come back but FH wants a big wedding with ceremony and reception. How should we do that? Is it ok if we get legally married and then have a vow renewal? His cousin is a priest and would do the ceremony for us but we’re still kinda lost

TIA