What are show quality trucks REALLY worth?

[7dguy]

So I'm about to open the wallet on my 70 truck. As posted elsewhere, it's a rare bird: 70 CST 400 115", Fleet, Wood. I SEE ad's out there, but very few for show quality trucks, some over 25K. Most of these are resto-mods, some are original. While I intend to keep the truck for several years (may never sell it), I wonder what BB trucks brought back to day-1 are going for. Do any of you know what documented, very original, show conditin trucks like these actually SELL for?

Any known sales of high end, original trucks would be helpful.

Thanks.