mine came from corvette america,made in india.i got 5 bags of parts for 500 dollars canadian.this included the t-top trim the front and rear pillar pieces, the doors and the hood.(complete). they seem fine to me as i have not used them.i can't see any quality problems or the like.
make sure you check the t-top pins there is an early and a late 75 stripping and you need to know what set you have.(# of pins).mike