Cactus Music
There seems to be a myth that you should run your audio through some analog gear to make it sound better.. This might only be true for the very high end gear. What we have as plug ins, if used properly, blows away most of the hardware that's affordable.   

Affordable is subjective and depends on budget. What's considered affordable to one person might be super high end to another. Likewise what's considered unobtainable high end to one, could be settle for nothing less to another.
 
If I had a DBX 160a in my rack, yeah I probably wouldn't bother with it. But if I had a vintage DBX160, I'd probably run something through it on every project. If I had a hardware LA2A or 1176 or even just a cheap hardware clone of them, I'd probably at least try it. And if it didn't sound worse but just sounded more or less identical (unlikely) I'd probably use it. Why? Because you never know when the hardware is going to give you extra little bit. My opinion only. Your mileage may vary.

Outs of the  interface to a D-Box/LT setup to a Langevin DVC to a Daking FET3 back into the interface to a new track which outputs to the D-Box digital in. 
There are plenty of YT vids on the D-Box and how to integrate it. 
 
I am also sure you could just get a Mackie mixer and use that as your summing device.

Thanks, everyone! I really appreciate the help. I'll be giving your advice a try over the next couple weeks. I picked up the Warm Audio product line WA76, WA2A, and Tonebeast, along with some new mics, as my gear upgrade. This is really my first major upgrade other than software since around 2005. I've heard such great things about WA that I want to see if I can improve the sound of all my tracks with subtle additions. In the past, the weak link was probably mics and preamps, and poor room acoustics. No matter how many hours I put in, I never could get anything more than a mix that was just ok. Nothing great. Adding all the great software effect options would really bog down my computer. I'm trying to simplify each track, where it sounds great before adding from the effects. I just built a very quiet isolation room. I can't wait to record again, its been such a long, long time. Thanks again!

Congratulations.  You got some good kit there.  I found that the better the capture is, in the sense of sounding "finished," the easier mixing got.  A good front end can help with that.  Have fun!