Some times the guns worth in dollar value has no effect on whether or not you want to have work done on a gun.
I have a Stevens 87A rifle that the dollar value is $50.00 to $75.00, but I got it from my Dad, it is the only thing I have from him and he passed away over 10 years ago.
I just sent the rifle off to have it completely torn down, polished and blued, the cost is going to be around $100.00, dollar and cents wise is it worth doing it, NO, but sentimental value wise it is to me.
I would never sell this rifle no matter what I was offered for it.
So if it is going to make you happy, do whatever you want to it.