thanks george ! ill try , i started with a real bad resin 1967 resin of a caprice, so bad that someone give to me ! ,this what i started with, a badly casted '67 resin and the new amt '66 impala.
after glueing on the roof i noticed the C piler looked too narrow so i added some plastic to the sides of the roof and reshaped them also reshaping the side window, also the resin roof was more narrow than the '66 top,
nothing is to exact measurements, i just google pictures of '67 caprice's and used eyeball engineering,
added new drip rails and 1st coat of primer.
also the trunk on the impala is too short and the caprice trunk is longer , i fixed this by rescribeing a new trunk line,again eyeball engineering, i ended up cutting the whole trunk out and then repaired the trunk edge's reglueing it back on because my scibe lines were not straight.
short trunk.reworked rear window and made new window molding's, hope this help's.
new trunk.