Finally completed it! Used
@dumbo setup... Worked a charm!
Finished at 107% (didn't complete the pantheons, trial of fools or path of pain). I think I could have potentially done trial of fools and path of pain but not worth the stress and effort considering I'm not going for 112% because I know for a fact I wouldn't be able to complete the pantheons.
A bit disappointed that the final two bosses weren't more difficult considering one is the titular character and the other is the big bad.
I thought the hardest boss by far was Nightmare King Grimm...
Thanks to the peeps here for helping. You stopped that 60h play through becoming 100+ hours
Really looking forward to Silk Song. Until then, time to move on to Luigi's Mansion 3.
After how hard this was, I'm confident taking on any game.