I think this is a bad, bad idea and a overreaction.
Vince Carter might not be a Lebron/Kobe/Pierce goto type of guy anymore, but he's a very serviceable shooter that buys into the system and fits in with what they are trying to do and he plays the positions they need, Gilbert dosnt.
I just can't see how Gilbert can help Orlando in a way that Carter cannot! and Blatch/Lewis that is a major gamble.. you know that Lewis is in a confidence/shotting funk but if he does emerge during the season out of that funk, the magic has a very leathal player in lewis, blatch on the other hand is a unknown, you dont know how he's going to respond to a better system with a winning mentality.
To many risks here for my taste, i would pass but you never know.. it might work!