Currently in a similar situation, re: pricing reference and what's appropriate to ask for a guitar (near mint Picado Model 49 from 2004, incl. Travelite case w/humidity gauge, Dampit, strap for case, etc).
I've seen a few on e - b a y as well as Reverb, but I've also found those sites, in general, to fluctuate wildly at times on asking prices (especially when it comes to musical instruments).
In my case, I'd be using what I get from the Picado towards a new guitar that I'm hoping to purchase relatively soon, so while I wouldn't want to price the guitar for much less than it's current value, I'm also willing to sell as a decent 'deal', so to speak, to expedite the process.
Anyway, any guidance on information about appraising these instruments, even the 2004 Picado 49 in particular, would be extremely helpful!