Now that I got my flaring tool, I flared the vent and return lines for the AN fittings going through the root (inboard) rib. I also trimmed the lines to their final length. Short session today and tomorrow will be the same due to work, but hopefully this weekend I can get out the ProSeal and do some damage!
Trimming the vent line to final size using the tubing cutter from Aviation Depot, I mean Home Depot!
Flaring the end of the return line using a Parker Rolo Flare tool - works great lasts a long time!