Well, reverse Tessar or not, I like them. I don't do much macro anyway and scoring one for peanuts is more probable than getting a Raptar/Optar.
But I am more intrigued to somehow mount the Kowa. I really like DIY and the challenges it inheritly gives me. Besides, having the best does not make your work the best, just my philosophy. I like making stuff out of what I can get my dirty little hands on and then having fun with the outcome.