Marcway Models in Sheffield revealed that not only were these kits around but the range included the old Revell Spad. I don't know when this kit was first released, but I remember building one in the 1970s - my first successful biplane build! At less than £3 it seemed I couldn't go wrong and soon I was making my escape clutching the Spad and a Fokker E.1.
The build proceeded reasonably smoothly - though given the age of the kit it was not a surprise to find that a fair bit of flash needed removing. I had decided to finish it in French colours for my planned FLW French-style force (which so far consists only of the Spad and a staff car....) I think it looks OK.