Technical 1929 roof insert

Hey y’all , I was wondering if anyone knows if a 1930 Plymouth coupes roof insert will fit a 1929. Frank up in Portland makes one for the 1930, however neither him or I are sure if it would fit. I just was hoping someone might know and save me from mailing my beat up one to him.
https://houseoftops.com/product/1930-plymouth-2-door-model-u-coupe/