there are some parts you can use from the part of poland spad vii pe set for the hobby craft spad xiii,mainly the metal brackets on the wings which act as a uni-washer for strut mount bolts,other metal brackets and such, the seatbelts , throttle, some other odds and end cockpit parts like perhaps the rudder bar and framing for it,prop boss,most likely exhaust nozzles,probably the bell cranks if you wish to use pe on this type thing. there are spokes for wheels which could be used there or elsewhere.all in all maybe a bit less than half could be used on a xiii to dress it up.there are cowl fasteners which may be useful elsewhere as well. its not a cheap pe set but there are 3 frets of decent size. which could perhaps be used on various other odd and end type stuff. it kinda worth it if you dont mind spending the money for just a bit of extra detail.