Personally, I like to work the wood on my firearms. Pistols, rifles, and shotguns alike have all seen some sort of work. I see no need to have a professional do the work. Just start with fine grain sandpaper, and finish it the way you like. Right now I am stuck between Linseed oil and Verathane varnish as to which would look better on my Mosin-Nagant battle rifle. The Soviets were fond of throwing a coat of lacquer on these rifles and getting them out the door. When I got it however, after 64 years, it was full of nicks and a ton of oil. I sanded out the nicks and in the process removed a bunch of oil. Then took to various stains in an attemp to get the color evenly matched. Now its decision time.. it looks great with the low lustre finish of the LO shining through, but I am sorely tempted to coat it with a modern acrylic coat of Verathane just because the glossy look is the way they originally left the factory and modern varnish protects the wood so well.
My vote in your case is to have at it...
KKKKFL