trouble finding converter to play nes games on an AV famicom

[dave in or]

Just got an AV famicom and I'm surprised how hard these are to find.  There are many converters to play FC games on a NES, but not the other way around.  There is only one seller on ebay and I've found just one other available online with a warning that it has "known issues" with the AV famicom.  Anyone have one they want to sell or know of where to get them?  I've heard that some require the NES cart to be facing backwards.  I'd love to get one where the game faces forward.  Any ideas? Anyone know why they are so rare as oppossed to theFC to nes converters?

[nintendodork]

I'd definitely look for something that does the job first.  NES to FC converters are uncommon as it is.  Asking for one that faces the NES carts frontwords is asking a bit too much in most cases.