Look, HardHead - they'll make any fucking length gas tube you want, and they'll ask you questions about what you're asking for, to determine your competency.
YOU look like YOU can explain it. So do it. CALL John, and tell him exactly WHAT you need, and explain it when he asks you the questions.
CALL him.
WTF does it take to get you to understand this?... WOA MAKES custom gas tubes! To whatever length YOU want...I'm way too tired after this weekend to deal with "too smart" and "too stupid." You were given advice, yet you know everything. You can listen... or not...