One sweet one to check out is Johnathan Cieners suppressed Ruger MK II pistols. My friend has one and its sweet. It has the appearance of an 8" bull barrel, and is very quiet. It cost around 500 bucks including the pistol, plus the 200 federal fee. If you send him your MKII its cheaper by about 150 bucks.
He advertises in G&A, out of Florida.