WTB Lifeline Zipper Extender
Several years ago, Lifeline changed (improved) its zipper on the chute jackets.
If you have an old style chute jacket, then you will need the old style zipper extender.
I assume the same theory applies to the #130 jacket.
If you are going to recertify an old style zipper jacket, then Lifeline will automatically replace the old style zipper. Now, you will need to buy a new style extender to match your updated jacket.
Depending on your situation, it might be less expensive to find a used certified jacket that fits you. Keep the old one for the occasional passenger.
As I see it, your best bet is to borrow jackorace's extender, and hope he does not regain the 20 pounds.
Good luck.