I wouldn't be surprised that you could get $4-500 for the Royal B-17 these days. Not sure about the Stafford B-24. The Stafford kits were not as ubiquitous as the Royal kits were. People these days seem to view the old Royal kits through rose colored glasses. Having said that, it seems that almost any out of production kit fetches good money these days so the Liberator may sell for just as much or more.