The canards on this plane in real life were converted F/A-18 stabs. So, a good & easy way to start a conversion would be to find an -18 kitmaker that makes one in the same scale as your -15 and buy a set of stabs. Other than that this is mostly an F-15B or E,( 2-holer) I believe. Oh, and the exhaust nozzles are rectangular for exact scale.