The easiest way to do the parrallel setup is to have bent hardlines w/ fittings coming out of the front, or looping all the way back around. That's probably going to be a DIY thing to suit your own needs since you're building a very custom setup at that point.
Later
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the universe." -Albert Einstein
When was the last time you *really* did something with your Z to call yourself a Z enthusiast?