Yes I agree David G. join up to SAAC. Their newsletter although hard to read in a plane, does list some great cars.
www.saac.com
There is an email link there and you may want to list or ask the question -
"I'm looking for a CSX car"
Seems to be the main forum or sale area.
Just a lazy $1m to $2m kept handy and ready, will see you on your way to the ownership of a good CSX2000 car.
Good luck