I am in the market for 12x36 or 13x40 lathe. I will be doing rifle barrel work and the largest barrel i'd work on would be 34" long and 1.5" diameter. Can i work on a barrel this long on a 12x36" lathe? Is it worth the extra $$$ to move to the 13x40? The spindle bore is the other problem. Most in my price range of $2700 have spindle bores of 1 3/8 or 1 7/16. Can i modify the spindle bore that comes with the lathe to 1.500 or larger? Like i said my price range is around $2700 if you guys think i could get a better lathe for a few hundred more please recommend it. Thank you!