What would you do?

ki

My fiancé and I are engaged to be married and we’ve started planning the wedding, problem is.. my dad is in poor health, he says he’s fine and to not worry but he has so many health problems that worry me and make me question how long he will be here. I will forever regret if he is not there for my wedding. This is my first wedding my fiancé’s second. I want the wedding every girl has always dreamed of but we just don’t have the money. We have about $2k saved right now. I want to move the wedding up so my dad will be here but we can’t afford a decent wedding. I have priced some things out and going cheap it would still be about 5-6k. What should I do to find a happy medium between bumping the wedding up for my dad and having a wedding?