How could one tournament make him tired? He hasn't played in a month and a half. I think he'll be fine, but I don't see him making the QFs in Paris just b/c he doesn't care enough and there are a lot of lower-seeded players who can and probably will beat him there
Because it's the previous week. Queens is right after the French open, and Wimbledon I think is right after Queens...I don't know, maybe you are right. Just hope he e is fresh for the grass tournaments.
The other thing, I think if he is healthy a has a bit of luck with the draw, he can do it. Last year is there were normal conditions he would have chances against Monfils.
If he plays a couple of rounds at the French, and play decent performance at Queens, it will be enough imo, as far as lack of matches is concerned.