Trouble setting date for vow renewal

Hi. My situation is kind of unique. Backstory: My husband and I have been married for 10 years and got married under less than ideal circumstances. Long story short, we had an extremely rushed civil wedding in our attorneys office and it just really wasn’t enjoyable at all, we only had my husband’s best friend and my dad there as witnesses. We’ve always wanted to have an actual ceremony and reception to celebrate with friends and family, but it just never was the right time. Fast forward to now, my dad who has been living with cancer for the past 23 years, is not doing well. So we are now feeling very rushed to have this event because I obviously want my dad to be able to share this occasion with me and I don’t think I’d be able to live with myself if we waited too long and he wasn’t able to be with me to walk me down the aisle and have a father daughter dance with me. We are calling this a sequel wedding, and fully intend on doing everything traditionally as if it were our first wedding, and we are not going about it as if it’s a vow renewal. At first we were thinking March 2025 would be best, as it would be close to our anniversary, and we would have a little bit of time to start budgeting, however, it is now being discovered that my father’s cancer is growing faster than expected, and the main concern right now is him losing his memory and ability to speak and walk since his cancer is in his brain. But they gave absolutely no timeline estimate for this, so now I’m feeling lost as to whether I should move the wedding closer and do it in late October/early November, or if we should just keep it in March. If we move it closer, we will obviously have less of a budget to spend, and seeing as how it’s a destination wedding, because we live states apart from my father, and he cannot travel, so it will be in the place he and my mom reside, I am not sure any of our close friends who live by us, would be able to make it. I’m just feeling very overwhelmed and stressed out. I also don’t have the support for my family that I would have hoped, my mom and my sisters think it’s absolutely silly that I would even want to spend my money on something like this. But it is very important to me. Any suggestions?