With crew obviously, one guy holds the boat while the other gets the beach wheels, but solo it's not so easy to do both at the same time.

Is it a shallow run up to the rocks, or does it get deep quickly?

If it's shallow, you could moor the wheels (and hope someone doesn't take them while you're out sailing) or perhaps bring a 8'x 8' scrap of rug to lie on the 'beach' at the water's edge where you can park the boat on the rug while you get the wheels.

OR...place an anchor (a cinder block) with a small float and a line on it just off the beach, where you can tie the boat when you come back, then go get your wheels.