Probably one of the most difficult conversions I have undertaken as I have used the Tamiya F-15C as a base but this needed a great deal of work to make an accurate Streak Eagle as this is an early F-15A Airframe. You can see the build progress here. http://www.britmodeller.com/forums/index.php?/topic/234985055-132-f-15a-streak-eagle-wip/ The kit has been modified with correct resin burners, seamless intakes, cockpit, wheels and a fair amount of scratch building.