Do a search of this forum for "Donahue" and you'll find a video presentation of his, plenty of rave reviews, and one not so pleasant experience (no doctor is perfect).

Botox is only temporary solution (and may not even offer much relief). With the cervical ribs and the symptoms you describe, I think surgery may be inevitable. The good news is the Donahue seems to be very conservative and only performs surgery when necessary and you are a good candidate for successful recovery. Those with cervical ribs have better surgical outcomes than the rest of us in general.