Thats pretty interesting Metroschultz, learn something new everyday.
And based on personal experience with my (RIP) 91 crx si, I had very little drag with the rear discs compared to my properly adjusted rear drums on my 96 civic. I also have a set of discs for the civic but i'm lazy, haha.
So keep the drums, maybe drill some "speed holes" for a bit of weight reduction
, and jam the adjuster might be the best answer