Got my number!
I requested and received #9632. This is my date of birth (9/6/32).
WBCCI sent me a set of loose numbers, but I was not at all happy with the alignment and spacing I was able to achieve. I ripped the numbers off and ordered a set of vinyl numbers "96329632" which come pre-spaced on a backing sheet. I'll cut the sheet in half and use the straight edge of the sheet to align with the Airstream name. I should get a nice, neat alignment that way.
I ordered the numbers from the same place that made my "Sabre-D" lettering. Kind of pricy, but I think crooked numbers look like heck.
John W. Irwin
2005 Classic 28 "Sabre-Dog III"
2013 Silverado 2500HD Duramax/Allison LTZ
WBCCI #9632, TAC TX-10