Urgent wedding before dad dies

Me and my fiance have been together 4 years and have a gorgeous 2 year old son, we have been waiting for the perfect timme to get married as his wages only just cover living costs... but... i have recntly got back in touch with my dad after 15 years apart and i want more than anything for him to walk me down the aisle but he has been diagnosed with ftd a progressive terminal form of young onset dementia and he is deteriorating very fast so we feel waiting until we are financially able to afford a wedding isnt an option anymore, please help raise this money so we can have a perfect day and make great memories of my dad while he is still well enough to do so.