Used this set for a 64A - to be looked on as a mainly exterior update. Plenty of wire cutters, aerial blades and plinths, a stunning 'disco' light, screen wipers, rocket pod endplates, main gear step/wire cutter, exhaust surrounds and main rotor root plates. Internally, there are two sets of seatbelts (look a little narrow to my mind), sill plates and a couple of little instrument panel additions. To make a realistic 64A, much scratchbuilding will have to be done on the highly visible interior. However, I do recommend the Flightpath set. The only item I chose to replace in it was the 'flat' cable deflector for the gun. The part does follow the lines of the original, but it is such a strong piece of kit that it really does need replaced with round section plastic rod. The is a picture or two of my completed model at www.aberdeenmodeller.plus.com (go to Gallery) although no real closeups.
Hope this helps.