this fellow was recommendend:
robert hoyt
freischutz shop
fairfield, pa.
717-642-6696
call for prices but my info says he can reline a sharps for $135; but i have seen internet info that it's $200 + $20 return shipping via ups for a rebore. he can do a stainless steel liner; any twist, any standard caliber, any rifling type. if you ship the rifle to him strip the stock(s), sights, any furniture before hand...just ship the barrel and if it has a block that too. good luck, geo.