Either way, send it to Robar to be coated with NP3.
I placed a bid on a PT1911 SS on gun broker, and now the dealer is telling me I have to send him a cashiers check even though his auction says NOTHING about cashiers checks... O_O I smell something fishy... I wouldn't have bid on it if it said payment was a cashiers check. He has VISA as a payment method. wtf.
Most prices on gunbroker are cash/cashier check prices. Many charge 3-5% more if you use VISA. If they advertised VISA in the auction they should honor that but the fine print might cost you the 3-5% more. For the most part I send a cashiers check. It costs $2 at my bank and it usually saves me $20-$50 bucks in the additional VISA costs. The only negative is it takes a few days longer for the check to arrive rather than send it the same day when your VISA is approved.
I believe you can report them to gunbroker if they don't honor what they advertised.
As far as stainless vs blued I strong prefer stainless for my "dress" guns. If I am going to dress up for dinner or business I prefer to have a stainless gun on my side. For everyday carry I prefer blued for the slight tactical advantage of non-reflectiveness.