Some remarks for those kits I have:
The Spad 7 kits are very similar, the major differences are the shape of the cockpit cut outs, don't know which is more accurate and Special Hobby has vastly superior wings of very fine section.
The Aeroclub FE 2 and RE 8 are quite useful kits but would benefit from some refinement of the cockpit and other detail. For my taste they contain far too many white metal parts.
The FE8 has some inaccuracies when compared with the NZ replica
Building the FE.2b | The Vintage Aviator
upper wings at tailbooms, section of stabilizer and elevators and most important air intakes for the radiator.
The same site offers good references for the RE 8
Re.8 Reproduction | The Vintage Aviator
The Blue Max Dophin is useful but requires a lot of cleaning up and careful assembly.
The Dornier is has some minor faults and an ugly radiator but all the kits are very good if compared with the non existing alternatives in that scale!