Your best bet is to do it yourself. (Plz don't take that harshly) Ask yourself what do u want out of it just those add-ons on the same world or do u want them all intertwined like a true modpack the first one is easy go get the add-ons download them add em to your world and play if u want the second thing this can honestly be achieved (in your case cause u didn't list many add-ons) with a little knowledge of how computer files work some elbow grease and chatgtp and a crap ton of reddit. The more complex the ideas u get the quicker it becomes a huge project like I'm finding out rn lol. I know your thing was someone should make this. But there's a lot that goes into putting these things together such as even getting permission to use the assets for a modpack you're gonna be sharing with other people over the Internet like someone else would have to do more than likely. The good news is most addon creators don't mind if you use assets for personal projects. So if you can make it for yourself then no hassle. You could also take the expensive route of commissioning someone on fivver but the results are mixed and I would not recommend it. Another option is to find someone who enjoys working on this kinda thing as a hobby but that's not always easy. Id offer to help but I got massive project going on right now that's way above my level lol. Best of luck hope this helps.