ANY OLD SMIFF is worth restoring!!!
I have an original 686 NO DASH (8-3/8") and a heavy barrel Model 13-1 very good condition.
You could maybe even DIY it but I'd seek a professional plating service... nickel is may e around $10 per pound but plating stock could be lots higher. It's an electroplating process and lots of trial and error for a novice like us.
