Go with the 74 handwired RI if you can get one. I just got mine yesterday and it's incredible..iidentical to the real vintage ones I've tried.
I recommend PRMusicSupply, as they can mod it for true bypass, LED, and 9v power jack for only $60 more. (Well worth it)
I have to say that my original 74/75 Script phase 90 sounds killer and the last thing I would want is true bypass on it. It ooozes tone and the last thing I would want to do is loose that. Do the new ones add to the sound when "off"?