What should I ask for my 2-12 Recto cab on trade?

[zekmoe]

I have a 2-12 recto cab that's about 8 years old, in pretty good shape. V-30's but not the switchable backs I've read about. Sort of a rectangle box. Anyway, I want to get a 4-12. So what should I expect on trade on a 2-12? I was hoping at least $300. Am I reaching on that?