Why do you need an examiner? Go to the FSDO with Aircraft Commander checkride paperwork and designation letters. They should add it with no issues. That is how it is done with us in the E-6 (707/720 type). The only time we need an examiner is when we do ATP rides.
Edit - I see the closest FSDO is Orlando, so that explains it. Still probably worth the field trip. Make it an out/in.