If you don't want to do the swept vertical tails with high tailplane, just take a F-82 and splice a P-51H fuselage, modified as desired, into the center of the wing and splice the horizontal tail as needed to extend it. For one big radiator/oil cooler set up, use one from a 1/48-scale kit (assuming you are working in 1/72 for the base kits). For a tricycle-geared aircraft, the main gear as depicted is definitely too far forward unless you have a very heavy nose armament fitted to balance those long rear fuselages; I'd be tempted to go with leading edge radiators and oil coolers and move the main gear aft.