Sorry it's been a little while...
Leo, while I thank you very much for all of the effort and time that you've taken, and Tipsy DOES look promising, I'm just not sure what the problem is and I honestly don't have the time right now to install another distro and try it. The truth is, I have been just so back-logged with work, it's crazy, and I haven't had a lot of time to devote to this.
I was hoping that I could just throw WINE onto a spare system and have HFS up and running in a matter of about a half-hour, but alas, with all of the problems that I have had getting everything to work, I don't think that I can give this any more time...at least not for a while.
If everyone else has managed to get HFS to work by just doing that (or even if a little tweaking was needed, that's fine), then I'm happy to hear from you. I just don't know what I'm doing wrong, then. Maybe it's just a change in something with the 16.04 Ubuntus...who knows.
I figured out a way to get it working with SFTP on Windows (and Linux, of course) so it shouldn't be a problem to transfer the files I need over the 'net to get this work done. Of course, it would have been easier just to use HFS, but sometimes, you just gotta go with what works.
Anyway, thank you everybody for your time and effort, as always, and if any of you DO figure what bone-headed thing I did to screw this up, please let me know.
Or, if I actually did everything right (and still just couldn't legitimately get this working because of some other crazy thing), and any of you guys wanna take a crack at it and let me know your findings, that would be great, too. Talk to you all soon!