aaight, followup
after treating all the workpieces with the respect they diserve, u might get something like this:
threading the holes for the barbs and the hex bolts is an art of its own. don't screw yourself with cheap material in that department. u can save on the bench drill and on the drill bits but NOT on the thread cutters.
next u glue it all together. gluing copper on copper is best with some gooey glue. let it get very tacky, almost like rubber and then join the pieces and clamp. in my case i used plastic glue that ate away the plastic for optimal bond, so in that case get it together as fast as you can (don't let it get tacky or there won't be any more plastic ;-) )
a small leaktest can't be forgotten
hooah, action (very good temps btw)
and to make it all sortof complete, a pic of the design(idea)
credit where credit is due: #rotor the uber inventor of this method, thx for helping out a n00b; puzzdre, together we conquered alot of obstacles; and volenti for bringing jet impringement to the masses; bigben2k, our thinktank;... and big thx to the staff of procooling for giving us a place to learn from one another.