Thanks guys.
I see that the Starfire have a little diffrent roofline than the Holiday. The Holiday have a very similar roofline
to the 63-64 Impala. Maby it is possible to modify and take the roof from a 63-64 Impala on to the 63 Oldsmobile.
I guess i will have to be patient and see if they maby make a coupe of the Caprice/Impala someday.