Seems like a solid, heavy duty case. However, experience has taught me that multiple handguns in a single case is often a bad idea. And especially if you actually intend to place those four in that case as arranged, I suspect that you will eventually come to regret it.
They... move. A thicker gun or gun with a particularly think part (say... cylinder) will displace foam. The revolver will sit nice and tight -- while a thinner gun will migrate.
I experimented with ideas over decades before I got it right and I can't improve on my method now: each handgun in a zippered soft case and multiple soft cases in a sturdy leather (old school) fat laptop computer bag. Think 1990's era laptop and that's the bag I'm talking about.
Secure and safe, packs thin enough and extremely cost effective. The laptop bag can be found at a thrift store, the zippered cases are $5 at a big gun store or cheaper if you buy in multiples at a gun show.