I can see Robson being a good option though, particularly as you're looking at getting him anyway. Not sure of their relative BEs but if you don't NEED Tohu this week then you could probably wait since he's unavailable next week anyway. 53 BE so shouldn't go up too much?
As for the second trade, you're right in that you've saved a tonne of trades. You can definitely afford to risk Smith, while also probably grabbing VTW next week should he start for even more $