The 5" 686+, a 'Stocking Dealer Exclusive' some five years back, was my choice for a 686. It's a half lug seven shooter that came as shown - great Ahrends grips, HiViz front sight, V-notch rear sight - and it was $10 less than a 4" 686+ in the same case. My favorite 4" .357M/.38 is shown below the 5"-er below - a 627 Pro. Sure, it lists for $127 more - probably $100 cost more - but it's an N-frame, moonclip ready 8-shooter, with a recessed muzzle and eased charge holes for faster reloads. The best extra - a springloaded front sight mount for tool-less sight changes. It's barely 2 oz heavier, too, than the 4" 686+ - something to consider. Ranch Products has the moonclips for $50/50 delivered, too. Possibly my favorite cf revolver.
I don't want to pull the OP from his desired revolver - just offer a selection. Good luck!
Stainz
PS The 620 is essentially a 4" 686+ with a partially lugged barrel - and at $39 less, MSRP. Another choice.