The Alpha is #2619, and yes, the vents are baby blue.
I'm thinking about getting 1/48 VF-1A; that will give me the basic models. However, I will probably get a display case so that I can actually display the stuff I collect instead of storing it in a closet.
You know, I actually thought that the 1/48 VF-1S would be the only 1/48 I'd buy. I blame Yamato for releasing the GBP.