Just keep an eye on the FAA site and you never know what will come available... I had 88KC and I thought that was awesome but then I found something better I was overseas at the time and called the FAA and they told me the date that the N-number I wanted would be available and basically good luck as it is a first come first serve, I ended up getting it so it worked out for me. If you have a little time I am sure you can find an N-number that means something to you rather than just any short combo.