Gordie:
Yep - the sample part is going to the hard part. The one Virginian in that group of 3 in the original ad has the 2 side pieces which as I recall are very "sturdy" owing to their smaller size. Someone would need to provide the longer piece in the middle.
As you note, a demand would need to be measured so you are correct, an ad needs to be placed in the newsletter. So, there were 935 or so hardtops made. (If I am off by a small measure, I am going by memory so be nice) I parted out one, there are 3 at this Colorado place and the one nice CC Virginian.
All in all, I suppose there are no more than 200 Virginians and Frazer hardtops left in any condition. 200 might be on the high side. This would be a tough justification especially with declining interest in restorations and the old car hobby, but we will see.