I run a CM and a Smorg on my Inbred, on Blunt 35 rims.
They inflated no problem with a track pump.
2 of them were already tubed for more than overnight.
Took them off, Stans tape and valve as per instruction,refit tyre, soap on bead and wont go up with my pump. Cant see how another night of tubed will help when the past 3 months tubed didn’t.
In my opinion, you came unstuck when you removed the tyre from the rim completely. I’d have popped one side, removed the tube, and reseated that one side. This means you have only half the sealing to do.