I've had great luck with the Leapers scopes. BSA also makes a good dependable scope. Not quite sure how much magnification you're looking for or how much you want to spend, but opticsplanet.com has some great scope prices as doesn "natchez".
As for the synthetic stock on that rifle, I'm sure stuffing the stock with memory foam or some other substance would help quite a bit with the vibration. I used memory foam on my synthetic stocked GAMO rifles and it helped enormously....
Jeff