I will be updating my header tank, I will be changing out the plastic molded tank for the aluminum. in addition I will be changing out the fuel lines, the vent lines mostly in an effort to alleviate the fuel smell I get in the cabin. Any experience our thoughts, advice ect... is welcome.

I have a new aluminum tank purchased from Kitfox.
-Remove old replace new in kind.

I currently have one fuel shutoff and one fuel filter each side from wing to Header tank.
-Upgrade fuel line to same size but use fuel injection line(Non Vapor Permeable)
-Eliminate the fuel shut offs (Only fuel shut off will be at console)

Vent line is Tygon tubing ran to one wing

-I have tried to follow the multiple AD's on the matter. Most of which are from
earlier models 4 & 5 i think.
-My vent line seems to have fuel in it?? its that ok or normal?? A little input in
proper venting procedures would be nice. Though really it seems connect A-B
-I do like to utilize a slip. I am a little unsure if fuel in the header vent is normal

Any other thoughts hints or tricks would be nice.