It might be more work, but it'll save your back, and maybe a few other body parts. Working on the floor when it's rotated vertically and you can sit on a stool or stand is way better than laying on you back.
Trust me, I've been there.
To remove the cab I’d have to disconnect everything & that just seems like enough for me to get lost!
Me work hard cutting, it not off yet.
I kind of think that brace is welded to the floor where the fuel tank sets.
For much I’d cut the brace off & get a new one but then it’s still welded to the floor.
Will do more this evening.