Your thinking too deep. I wouldn't personally do this.
I think you are liking Emsisoft BB, but also like ESET firewall (maybe I'm wrong). Me personally, I would just choose ESET. Licenses are cheap on sites such as Ebay (I know at least 10 people cringed just now). Whether they are legit or not...they work for me.
Here's a whitepaper for ESET if that makes you feel better:
www.eset.com
ESET Endpoint is used by a big corp with many of thousands of locations that I do a little work for. ESET is not a little guy in the biz of cyber stuff.
I use Kaspersky though. I find it more fine tuned and polished. ESET is
fast though, but patch E of KTS 2019 is
very quick now. My 2 cents. Sorry for the rant.