Well I'm sorry that it took so long, but I wanted to get it right and it took a while to source the correct parts; none the less, here it is:
http://www.electronicproductonline.c...oducts_id=1996

Tested and verified working properly with my N800 (I assume the headphone jack on the N810 is the same); no special spacers or silly fuddling around required. I'm also working on reduced shipping costs to the US (just waiting on confirmation from the "test subject" to say that the product has arrived in a timely manor) that will bring it down from the current rate of $9 to $5. Anyone who's also interested in consolidated purchasing might want to checkout my latest post on the USB OTG thread also.

Thanks!
-Rob