I don't know if this will help, i used the plastic sheild that covers the throttle cable and made up a bracket out of aluminium plate to follow the same bend as the shield but extended it a few inches more then drilled 2 holes to suit catch can and hey presto.. Hope that helps..
I also moved the bottom bund to the underside and tigged up the hole. I found an air fitting which matched the original hose diameter and tig that on the bottom. And the overflow hose tucks away on the inside and runs down the frame..
All the best mate.. :Tip-Hat: