I think you need to make some minimum number of posts before you are allowed to send and receive private messages.
PM is how people communicate on this and other internet forums.
Also, if interested, I have a very similar car I just posted for sale on the PCA site.
Same color combo, clean Carfax, 27,000 miles, I am asking $55,900.
https://mart.pca.org/ads/44975
Good luck finding the right car.
Dave 703 232 2214