Pricing my basses - help please!

[bpbpbp]

Hi,

I have a 4 string Warwick Fortress One with AEC pickups, standard unmodified, and an Ernie Ball Musicman Stingray that used to belong to Richie Jones of Stereophonics. I don't know how to get proof of this, but I'm working on it. I know it's true as my mate was working at Cranes of Cardiff when it came in and I was lucky enough to get first dibs on it, being a huge fan of theirs at the time (still like them, just not a fanatic of anything anymore... beer maybe the exception).

I'm selling them as I no longer play bass much, and am struggling to pay my way as a mature student through the final half of my Music degree. Problem is, I don't have a clue how much they are worth. I expect to put them on Ebay to reach the biggest potential buyers. Any suggestions most gratefully received... pics here:

https://plus.google.com/photos/107497175547420996184/albums/5691984851690621473?authkey=CIqT7YbltdGzNg

Thanks,
Ben