Thanks so much to everyone for your input; it helped me to realize I should take them. Upon trying to get it to work logistically and making the preliminary calls, I found out that there is one part missing and I won't be able to take them at all this summer.
I'm at peace with this decision, because I finally made a decision and tried to pursue it, only to find out it wasn't possible. The reason it's not possible isn't my fault and I can't fix it, so that makes it easier too.
If anything,this made me realize that I DO want to spend some quality time with them and get back reconnected; I hope to spend some time with them this summer for sure, regardless! I will still be going to Disney in September, but I will probably be going solo; I'm already changing my mindset again and looking forward to another trip, even if it's alone.
Again, thanks to all.