I'd take Rudy in a heartbeat. I'm not all that concerned with advanced stats for a guy playing on a terrible, dysfunctional team. I'm also not concerned about his 3 point shooting. If he could do it all, he wouldn't be available. Besides, we have too many guys already who are essentially zero offensive threat when they aren't open at the 3 point line. We need someone off the bench who has more diversity in their offensive game.
And after seeing Kyrie, Love, Shump and Andy get injured on an almost yearly basis, I immediately throw out the lack of minutes argument.
Give me a talented player who can settle into a low pressure role and not be counted on to be a primary scorer. To me, Rudy is a guy who throughout his career has been asked to be a first or second option and he's not good enough to do that consistently. Ask him to be a 4th or 5th option on a winning team and I think you will be pleased with the results.
We don't have the ammunition to land a slam dunk trade. You are going to have to take on somebody with warts. We could do much , much worse than Rudy if he is actually attainable.