Saw these on ebay for a GT to GTP conversion. And a cool u bend eliminator.
conversion:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=250370698276
U-bend eliminator:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=250370722349
conversion:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=250370698276
U-bend eliminator:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=250370722349