Hardly blasphemy. The frame fits me, so if you get feeling really guilty, I can help you with that problem.
I also heartily approve of the 8-sp/9-sp Ergo look. They tend to mimic aero brake levers well, so the look of the bike stays similar. As the owner of a complete 8-sp Chorus Ergo group, all I can say is that you'll like it. No ambiguity in the shifting.
If what you are doing is blasphemy, then, well, my next two scheduled builds are gonna have me in the flames as well.
Unwittingly, you may have just helped me make a decision on my brevet bike build, too. Behind you 100%