@thbullard3 while I personally run monos on my main system as my primary amps, the next level stereo version amp id want would be too heavy. I also rotate in a secondary stereo amp with lower power and less weight yet it’s a true full Class A amp. So, "it depends". In your case you’ve outlined two scenarios. A few more questions...
While the Tyr amps are nice, and IF I owned a c-2300 preamp, I’d see some value in owning the matching 402 stereo amp understanding the designers voice and match some components to work together nicely. It’s more of a crapshoot with the Tyr more so than the 2300/402 combo. What’s interesting is that MC 402 is 110lbs. Each of the Schiit Tyr amps are 55lbs each, exactly half the weight. Yes, a consideration. My former stereo amp was just under 100lb, not as easy to move. So think about it - how often do you plan to move the amp(s) once in place.
Looking closer at your speakers, seems like either amp(s) would be fine for your JBLs. I wonder if the MC 402 is going to sound a little darker than the Tyr monos.
Do you prefer a darker/richer sound like most MC is known for, or do you prefer a little more detail and transparency you might get out of the Tyr amps?
10yrs down the road, or if you resale again later, its a toss up which will bring better return. How long are you planning to keep the amps, a few years, ten years+, or ?