I tried both techniques to see different results. Thought it might be better to use 2 cylindrical projections and planer for the flat surfaces, to give a cut metal texture on the flat parts ( two rings on UV map). Also used automapping for nose parts.

Theres a problem with my UV though. When i try to move the edge shown in yellow to fix strech it also effects the texture on nose part since they have connection. Can we work on different UV files for different projections and than import them into same UV map? Or is there a way to avoid moving the yellow edge witout effecting the nose part checker?

Also, for the streching when i apply the small numbered checker texture it seems good enough. But when i apply the big checkered texture the streching seems to be more.

Also 1 piece for front part would be a better idea to get the continious effect on the nose part. RoadKill or such can be better for this maybe. I will see when i get better in applying textures on a model...