Roof bellows issue

[Larkrise]

At some moment of gross negligence I lowered the roof and managed to squash the front elevation sewn-in strengthening batton. I have found this a most difficult issue to solve without easy access to the outside and inside at the same time. The bellows themselves are in good condition and have never failed us. Does anyone have any suggestions, or referral to someone who could help with a fix? I have tried to capture the issue on attached photos. Chris