Yes to both alternate scenarios you've mentioned. I think it just depends on which of Miami's trio you place the most value on.
For me, I think Bosh is the weakest of the bunch, but that he and Howard would be an excellent compliment to each other.
I'm not convinced James is a champ. Wade is more ice and money to me when it matters.
I'd certainly make the call if I were Miami. Maybe you start with a package that involves Bosh...I don't know if Orlando will get better.
Maybe Bosh, Norris Cole, Haslem, James Jones and Joel Anthony. I'd give them anyone else on the team they wanted outside of Wade and James if I were trying to move Bosh.
I'd worry about filing the holes afterward - it wouldn't be difficult....
But ultimately I'd trade either Wade or LeBron instantly and without a second thought if that what it took get Howard there - with a nod as you mention, to Wade our of loyalty -
Which is another reason I'd move James first...
They could stand pat and probably win, yes, but not as easily or as often I don't think, as with Howard.