Guaranteed, if I have money when you list them.I've got two guns that fit in this category, a SIG P6 and a 4" Colt Official Police.
I bought the P6 when the German police trade-ins came flooding in. I forget what I paid for it. It ran fine but most of the finish was worn off the slide. Back then, you could send a SIG to the mothership and they'd refurb it (pins and springs) and replace the sights with tritiums for $125. I did that and had the slide refinished while it was there for another $125. It was basically like-new when I got it back. It worked through 150-200 124-grain +P HSTs with nary a bobble and happily eats my handloads. I would've happily carried it...if it weren't for where the slide release is. I'd have to stop shooting all my other autoloaders if I were to carry it, so it sits in the safe.
I found the OP at a local gun show for a good price back when nobody else wanted revolvers. It was produced back in the 60s by the serial number and has some honest finish wear but is solid mechanically. It's accurate and places 158-grain bullets right at the top of the front sight. I had Bell Charter Oaks make a pancake holster for it - they either have a form for it or another OP - and it carries quite nicely. I even have six each Comp II and HKS speedloaders for it, and the cylinder release isn't an issue for me. But if it breaks, it may not be repairable due to the dearth of parts, so it too sits in the safe.
I need to list them in the classifieds here. At least they'd go to a good home.