I'll have to second Squirt's advice.
As a suggestion, maybe you could use Cerakote.
I'm not very educated about how closely you can get Cerakote jobs to approximating standard hotbath bluing, but if you can get it looking like it, I've been told that it's quite a bit more durable.
It's certainly nowhere near as involved a process to apply, and there are quite a few more people out there applying it.
Then again, leave it alone and keep the memories intact. Clean it up and oil it up good.
Somehow it seems like redoing a gun wipes away the sentimental value. Just me.
Dad died about 9 years ago. I haven't redone any of his old hunters. I took them all apart and cleaned them up.
There's lots of memories and miles walked in those old guns.
Cerakote in a gloss black is possible. But, nothing compares to bluing IMO. I've done both for customers at their request. Too, I've talked people OUT of bluing a firearm because it wasn't worth the cost. If it's sentimental, and you want it done right, spend the money and have it blued. But don't be surprised when the price tag is as much or more than the worth of the firearm.
If you're willing to consider Cerakote over traditional blueing, here is a thread where AllenM of Diamond Collision did a Ruger in "midnight blue", which I think is closer to a S&W blued look vs. something so dark it looks black...
https://www.indianagunowners.com/fo...er-security-six-transformation-pic-heavy.html
If Birds Aways sees this post, he had one of his CZ pistols done in midnight blue (or was it SOCOM blue?), and it turned out absolutely gorgeous, especially with the wood grip panel inserts.
Edit: found the pic of the CZ, and the color is Midnight Blue. This turned out stunning, I think, and this pic shows the subtle blue sheen a bit better than the Ruger thread above:
Wow!
I bet the old Master Chief is just about as pleased with that job as he could be.
I'd call that Cerakote job certainly good enough for all the most particular person.
What would the cost difference be between reblueing a revolver vs cerakoting? That cerakote job looks awesome