I purchased my '48 Burb as a mostly finished but ongoing project. When I stripped the bamboo curtain off the inside roof I found a aftermarket 2 piece headliner of unknown origin under it. Very poor quality workmanship and about an inch short all the way around. Must be a fairly common problem that you would think a few well placed measurements and a key stroke or two could easily fix.
So what's my point? Measure twice before you order and call them out when it doesn't fit right. Maybe if enough of us complain loud enough a caring vendor will step up and get their manufacturer to fix the problem.

Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line"! Hug a cop!
USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)