had a guy years ago bring in a as new BAR and said it was to front heavy, took a dull hack saw and cut off 3-4 inch, wanted me to put the sight on (for 5.oo) I told him the crown has to be done as he cut on a angle with the saw, he said no, it will be fine, so I suggested he go home and do the sight himself, never saw the silly old fool again, he may have got the welder out?.
What I am saying , just clean it up, polish a bit, degrease and usually turns out quite good, warm it up a bit helps also, not HOT.