Yeah, that was my Leopold.
It’s been done twice.
One with Zilents, and one with Ergo Clears.
Leopold is known for being challenging to desolder because of the thickness and quality of the solder - they do a better-than-average solder job. So I sent it to a desoldering service. It’s very doable, but whoever is doing it has to take care.
Three total desolder / resolder operations with the Leopold, 100% success.
Factory keyboards are not the ideal platform for silencing. Their sound levels are inconsistent, and there’s only so much you can do to control the stabs. But it can at least create something quieter than a regular MX keyboard. And Leopold has built-in dampening material, you could probably even substitute your own.
If I was OP, I would strongly consider the Archon AK87:
I have the AK89, and it is great for silencing. It seems to be dampened, way quieter than a Filco, for example. I put a variant of OUTEMU Silent switches in there, and it is the quietest board yet for them. The most ideal easy board for a silent TKL / fullsize.
Problem is the stock stabilizers, which are whack. They know this, and provide you with lube. Also, they are plate-mount so easily replaced. I replaced mine with lubed genuine Cherry stabilizers, and they are much better. Some trouble with the spacebar, so watch out. The stabilizers wanted to bottom-out loud until I messed with them some more. So some danger there.
I also own the Rakk Lam Ang Pro [unbranded version] mentioned in this thread. It is a neat keyboard for bells-and-whistles, but the North-facing LED switches could be a problem for Cherry-profile. Also, it’s thick and unwieldy like a 2x4 because of the built-in bluetooth and battery. Doesn’t always remember LED settings, either. It’s more of an affordable Drop CTRL, similar quality but way cheaper. It doesn’t have the best sound characteristics in stock form, although it can take dampening.
I have seen guides on-line on how to dampen the GMMK TKL, the Rakk Lam Ang Pro, and even the Teamwolf Zhuque, so it’s do-able. But the Archon AK89 has required way less work on my part, so I highly recommend it as an office board, assuming the AK87 is the same as AK89 but smaller.