HA Models has just released a 1/72nd Trompenburg Spyker V2 resin kit - ref. ?
Source: https://www.aviationmegastore.com/trompenburg-spyker-v2-spyker-v2-ha-models-spyker-v2-netherlands-military/product/?action=prodinfo&art=167918
Instructions: http://www.hollandaircraft.nl/T01 V.2.pdf
V.P.