Fliger747 did one years ago for the Ito model.
http://www.sim-outhouse.com/sohforums/local_links.php?action=jump&catid=8&id=10757
Revised FM for Ito san's F82G Twin Mustang Night Fighter. Brings performance and handling into specs for the RTW. Tested performance, std atmosphere, 17,800# aircraft weight. True airspeeds. 10,000' 59.7" MP 1599 HP: 372 Knots, 428 mph. 20,500' 59.75" MP 1610 HP: 401 Knots, 461 Mph.
by fliger747 (2007-02-01 10:37:54)