Where in central North Carolina to get 870 drill & tapped?

[Uncle Tom]

Got a 870 that needs to be drill & tapped for a Burris Fastfire III sight....live near Dunn, N.C  One gunsmith quoted like over $100 for first hole then less for additional....seems awful high. Got the Burris 336 mount so only 2 holes to drill. Need some help guys. Thanks.