Ive discovered something, the first 3 views, are of the SU 26 M2. The tips are atriaght on the wing and tailplane plus the air intake on the cowl is far more elongated. Also the cowl has a slight bulge left and right sides. Also the canopy blends into the fuselage sides more.

The colored view and the one with russian writing are of the SU 26 M, the first version. These have the angled tips and a different shorter air intake, also the canopy is more rounded and bubble like.

I have 3 views and cross sections, all quite detailed for the M variant. But I'd prefer to do the M2 variant, for which I have no cross sectional information.