Keep it....you going to regret selling it big time. They do not, nor ever will again , make them like that. And just as soon as it's gone and the money spent, you wont be able to find another you can afford,for blood or money.
Those guns were hand built by craftsmen, hand fitted and tuned...can't build them like that anymore. Labor is too expensive , craftsmen are dying out.
DO NOT SELL IT ! When that gun is gone , you will never get another even close to it ....believe me, I know what I'm talking about !
Gary