Of these 4 you listed, only the Maurader is from an American company (Benjamin).
Again, if you could chime in with your budget, a many member can list exactly what you need, from gun, scope, compressor to ammo.
As far as noise is concerned, generally speaking, the smaller the caliber, the less noise it makes, because it needs less air to push the round. But many manufacturers design their airguns with an integrated shroud which reduces the report some.
In addition to integrated shrouds, there are several companies that make airgun specific suppressors that don't need a tax stamp, certification, or anything like that.
You can my Benjamin Bulldog .357 with a DonnyFL Ronin suppressors add on in the photo below. I do not recommend this for squirrel hunting, as a 180 fpe airgun is, let's just say, a tad excessive!