Sounds good in theory.If Wilkins were to be an UFA he would have major interest from just about any team with the available cap space in order to sign him assuming it made sense for them in terms of their current roster and how close they are to being contenders.
I dont think Wilkins would care all that much where he goes as long as he is paid his market value, so I dont think he would turn down the big contract he seeks from another team in order to play in Miami again on the franchise tag.
So what it would come down to is how much compensation can we get for him in a trade.
List all the "tag n trades" that have happened in the last 5 years.
I'll wait.