I would like to see[get} a Sportster stock set ,so if you can get it off w/o a bandsaw,let me know. Can you get a 1/2" socket in to the bolt head? If it will reach that far without binding on the inner surface of the stock tube but it's too small to fit the hex -head of the bolt,get an el cheapo 9/16" socket and grind it down. I've done this with Survivor stocks with very little grinding of the socket . If you taper the grind ,you can take the socket wall down to the hex grooves and still have enough "meat" in the socket to take a stock bolt off. A hex -head socket works better than a 12 pt. If it is a squeeker and you don't want to have to keep that socket in a special place, replace the bolt with an Allen-head bolt,but then you'll still have to have a "special tool" . Boring the access tube is up to you, I won't go there! Ken