My poor english... I suppose you mean "was it difficult to built?"
Well scrapping the dorsal spine, the frontal...spine (there's only spines on this thing

). There was two big rectangular holes, filled with cardboard. This gave a flat area. After that, graft the canopy on it...not ideal, it's an A-10 canopy (thanks Heller!) too much hurry to wait five days a YF-22 windshield...
Made that in three hours... I'm nearly as productive as comrade anthony some days...
I have high-viz British decals, but no idea of the camo. dark blue and grey ? green and grey ? dark blue and green ?