A friend gifted me a lefty(I’m a lefty) Remington 700 in 280 Remington. This cartridge is pretty hard to find and factory loads are pricey. I was wondering how much it would cost to rebarrel this rifle to a more common caliber like 308 or 30-06? Could I just buy a new barrel directly from Remington and give it to a gunsmith for the rebarrel work?