Meh, there's a real great chance that the Wolves would agree, I just don't think it would be a big deal. I'd still do the deal for both sides.
Tinsley would be a huge upgrade at the PG spot for the Wolves. They would get A LOT more out of him (even if he only plays half a season) than Brian Cardinal. I agree that they wouldn't be thrilled to be the final year of his $7.5 mill contract, but with or without him they will still have significant cap space, and there's no way they're going to land King James or Bosh anyways.
As long as Tinsley can stay relatively healthy, he shouldn't be too hard to move later down the road either.