If you can remove the ladder, I'd say that's half the battle.
If it were our job, my first go would be to mask the top (curve or hex) and the bottom hex as well, leaving the center unmasked. Cut the mask and backing close to the decal. Probably don't need to be super precise, but you don't want to have a lot of excess
paper flapping about.
I would want to treat it like a big rectangle.
Gravity is your friend.
I'd put the hinge right below the mask at top. Peel back the top under the mask. Squeegee down most of the center....Might see how it goes at the sides.
Then I'd climb under the logo and peel back, fold over, but don't cut it. Pull the backing down not a little bit or a lot. You have to be the vinyl whisperer on this one. Maybe a couple feet to start. Try and "glass it," at least in the center. Not sure what the outer curve will do but work from the center out and see what happens. You might wind up tacking the sides as you move down. But I think the key is to treat the vinyl like you were hanging it from the top of a box truck and go with the flow at the sides of the panel.
I'm not a fan of heat. You might need it, but it's your last resort.
Also, like some other folks, I'm am a big fan of Arlon SLX+. It's a little tacky, but repositions easily.
That's my two cents on how I would attack it. No guarantees.