Hey - you changed your posted plans, so the responses don't make that much sense any more. I think originally you said you were doing Sierra cascades starting in July? And now you are starting in Crater Lake, then heading to the coast and riding the Pac Coast route?
In any case - you won't get rain in the Mojave in summer/fall.
Good tour idea (hahah, i'm not saying that b/c it's mine).