Thanks for the great response (even referencing my favorite movie!). Had I thought about it for more than 2 minutes with my head rather than my heart, I would've know that the signal out of the amp is the wrong signal. I just looked at ALL THOSE INPUTS/OUTPUTS and thought "maybe something will work!".
(As an aside, I would love to use my drive channel on my effects-loop-less amp, but the reverb tank stinks and using my reverb pedal before drive is, as you know, trashy. That's why I was asking this question.)
Thank you for the great response and helping me realize my blockheadedness!! :)