You can do what I did. Get some of Brownell's AlumahideII. I used this on my Robar. It sticks like glue, and is tough as nails.
What I did was this. I pulled the scope off, and left the rings and mount on. I pulled the bolt out. and jammed as much news paper into the action, and muzzle as I could possibly fit. I then took the action out of the stock, and suspended it from the rear action bolt hole with thin "string". I then sprayed the whole action/barrel with a very thin coat. Let it dry, and repeated. Note, when using this stuff make sure you have PLENTY of ventilation. Also, wait a sold 2 hours between coats. After you achieve your desired results, let the thing dry for at least a good 5 days. That's right, 5 days. 7 would be even better. It gives the paint time to cure. Pull the paper out of the muzzle and action as soon as you're finished with the spraying. Do it CAREFULLY. you don't want that paper stuck in the action while the paint is drying. It's a PIA to get out. My rifle turned out great, and the finish is very tough. I even took some gel paint stripper to it to test the solvent resistance. After an hour of it sitting on there, it didn't even make a dent in the finish. It's good stuff, just make sure what ever you DON'T want painted is either removed, or well covered.
As for the scope, I'd leave it alone. If you have buttler Creek caps on it, paint them inside and out. You can use camo tape for the actual scope body. That'll help if you ever decide to sell the scope.