Ay, she's not bad Tony, but needs a few corrections in different areas. (Welcome o the forum, by the way!)
What I've done to mine:
Canopy: Falcon clear vax, with insert added at front cowl to fit;
Cockpit: mix of parts (Modified Italeri P-51D seat, Revell P-51B dash, scratchbuilt extras) ;
Wings: modified mg's, new wingtips formed from scrap resin, 1 mm fillets added in upper flap cutouts (from margarine container lid!), other details still to be corrected;
Tail: fillet sanded to correct form and position (was offset to port a little), tail-light area removed (to be replaced);
Radiators and interiors: scratchbuilt;
Undercarriage: Modified Revell P-51B legs, True details wheels, prob. modified Hasgawa/ scratch gear doors (to be decided), modified Revell P-51B tailwheel;
Nose: replaced with Revell P-51B item, various fues details corrected/ scratchbuilt;
Prop: Revell P-51B spinner, Airfix P-51D blades (not completed yet).
I'm correcting as much as I can - within reason. The wing, for example, is too thick at the root and thus has no upper dihedral, but that's too much of a job to correct at my current skill level...
Evan