I definitely wouldn't trust it if they're not certifying that they work and providing the exact revision of the board. Even boards that appear to have the same layout may be different - it was common to screw up a trace layout on a first version and need to manually solder bodge wires during assembly.
They are providing the specific revisions:
Lunar Lander, Warlords (Rev D), Black Widow (Rev A), Gravitar (Rev C), and Major Havoc (Rev D).
And their site also states "These boards use the original bill of materials, follow the original schematics, and can be used to replace damaged original boards by using the original parts from these boards."