Used Nuskyn Conga and Bongo Heads Sale or Trade

I have some used Nuskyn conga and bongo heads I no longer use. Eventually I will figure out what I think they are worth and put them on Ebay. For now I'm open to offers, or interested in trading for new or used cow, mule or maybe even a water buffalo skin if it is an older thicker specimen. Photos available by request. Of course relative values of a trade might need adjustment, not expecting to get a new mule skin for a used Nuskyn :-|
13" tucked Nuskyn conga head model M7-1300-N6 - Little wear because the head was barely tensioned to the point where a note sounded and the drum was only played lightly. Low tension means little bearing edge crease.
11" tucked Nuskyn conga head model M7-1106-N6 #1 - Low tension lightly played, slight bearing edge crease formed.
11" tucked Nuskyn conga head model M7-1106-N6 #2 - Higher tension which has formed a definite bearing edge crease, and also played harder. Better slaps for being broken in, but how it will work for you might depend on your exact bearing edge diameter.
10" tucked Nuskyn conga head model M7-S100-N5 - Tensioned high enough to form a bearing edge crease, but played very lightly.
Also have a 10" 5 lug Toca comfort style chrome rim model 20120-C - This fits the 10" tucked Nuskyn head above, could be used to make the Nuskyn head work on any 5 lug quinto with a 9 1/2" to 10" head or so. You can see the rim here: http://www.tocapercussion.com/docs/spar ... as2003.pdf
7.15" tucked Nuskyn bongo head model M9-0715-N5 - Tensioned high and well played, but still in good condition.
6.75" S-Series Nuskyn bongo head model M6-S675-N1 - Tensioned high enough to form a bearing edge crease and well played. Since this head is thinner than the tucked models I will note that this was never over tensioned.
13" tucked Nuskyn conga head model M7-1300-N6 - Little wear because the head was barely tensioned to the point where a note sounded and the drum was only played lightly. Low tension means little bearing edge crease.
11" tucked Nuskyn conga head model M7-1106-N6 #1 - Low tension lightly played, slight bearing edge crease formed.
11" tucked Nuskyn conga head model M7-1106-N6 #2 - Higher tension which has formed a definite bearing edge crease, and also played harder. Better slaps for being broken in, but how it will work for you might depend on your exact bearing edge diameter.
10" tucked Nuskyn conga head model M7-S100-N5 - Tensioned high enough to form a bearing edge crease, but played very lightly.
Also have a 10" 5 lug Toca comfort style chrome rim model 20120-C - This fits the 10" tucked Nuskyn head above, could be used to make the Nuskyn head work on any 5 lug quinto with a 9 1/2" to 10" head or so. You can see the rim here: http://www.tocapercussion.com/docs/spar ... as2003.pdf
7.15" tucked Nuskyn bongo head model M9-0715-N5 - Tensioned high and well played, but still in good condition.
6.75" S-Series Nuskyn bongo head model M6-S675-N1 - Tensioned high enough to form a bearing edge crease and well played. Since this head is thinner than the tucked models I will note that this was never over tensioned.