Harpo,
I think I remember your name from the Aussie Pythons board.
Don't be too upset about not being able to own "exotics" there. From my experience, the Aussie snakes are some of the most active, least shy and most social of all the large constrictors. Carpets are perfect, Olives are incredible and Scrubs as well.
You have the python area covered.
I think the only negative would be missing out on the South and Central American boa constrictors.
I think your scrubs and olives fill the retic gap very well and from what I hear, olives will eat ANYTHING so they could fill the king snake gap too LOL.
Your snake is beautiful too. I have a very similar looking girl.
Reinz, how thick is your largest coastal? And I guess how long and what age?