One knife Crew. Many fish can be cleaned with a smaller knife, believe me. I actually use an electric knife when I have lots to clean. The knife does "not" have to have a #6 grind, although that's better for skinning fish. The #6 grind allows you to lay it flatter for that delicate work. A standard #7 works "almost" as well, but not quite.
One thing for sure: It's a whole lot easier to clean big fish with a small knife than little fish with a big one! You guys figure it out. That's why I gave you a couple of days. Most suggestions have surprised me, so far.
We'll see, Capt. Chris

Capt Chris as a young man. "Fishing is a contact sport!"

Here is a big fish knife that I have, bone micarta might be nice

Peter

Yep, that's a dandy and it can filet a bluegill or crappie, no problem, or a 20 lb Red.

Pap

And then.....
Maybe a "Piggy Back" custom sheath adding a 10-5 with matching handle.
Okay, Okay, I know
K I S S - Keep It Simple Sailor

Pretty good participation in this build. I don't have any preference as of yet. But a Model 4 or 7 would work pretty well.

Model 7, #6 grind, SS, micarta--something from the Captain's stash.

I agree that the Model 7 would be the right choice, but it seem a shame to use a #6 grind, and thin the blade so much, not to mention the removal of the top edge grind. the #7 is so close to the old grind model 8 it would seem possible to just sharpen the top edge and then you would have the best of both knives with a 5" blade.

I was thinking the same thing Max except maybe we could convince the shop to add teeth as de-scaler. This doesn't work on a #6 grind.

I sure wanna' know "who" will be able "get the shop" to add the "de-scaler"!
Capt. Chris