I believe this is what you are looking to get ?? I assume they are pretty much the same over the years since Porsche factory first inception in the early 80's to 89 911's - if yours is within period era 911's.
Not mine but check eBay link below: This is probably the one you need as it is the only source for all cabs models.
https://www.ebay.com/itm/371876177951?hash=item56958c281f:g:UeQAAOSwA3dYd~m Q