Turns out the the three doors I was hoping were a bit older than they are, are all pitch pine - still very lovely though and for the sake of £15/door I've had them dipped rather than the greater expense (and effort) of peeling them myself. Time to sand and protect now... they will not be painted, so thoughts on protection? Some seem to think danish oil prior to beeswax is the way forward, but not really sure why? I was just planning on applying beeswax directly to the wood post sanding.