With the missing bottom panel, which is why (I presume) that the fabricated louvers are in its place, value? not much in my opinion beyond a conversation piece, or parts, it's kinda ruined at this point, ( unless you have a parts shell stashed somewhere in your barn) maybe $500...pity
In fact, the more I stare at it, the more it looks like just a bare door. ( you can see the chair rail molding just behind it. so maybe $5.00