Lots of good ideas and info in here, I found mcmaster sells Acrylic tubing by the foot with no minimum.
Anyway I ended up buying a Bay-Res along with the rest of my water cooling stuff, should all be here by Saturday. If I end up not liking tbe bay-res for some reason (Im sure I will) then Ill look into making a custom one.
Good thinking on the Gravel Filter/Vaccume tube idea. Easy to get localy.
Well off to go pick out some more modding stuff to buy
-Matt