Perhaps you need to look at the accessory barrel cost again, add $15 fitting per barrel, $10 return shipping per order, and the cost of shipping your frame to them, PLUS being without the rifle while they do the fitting, which can be a substantial amount of time. Those that sent frames in for barrels last October are just now getting them back, a wait of 2 months isn't out of the ordinary if the barrel is in stock, if it's not, it could be much longer, .30-30 barrels were out of stock for 6 months 2 yrs ago. Summer time wait is usually less, sometimes, depending on shipping time, turn around is only 2-3weeks.
Tim