Peruvian versión and I think libyan too, fit the R29B engine instead the AL-21F, which made the rear section of the fuselaje asymetric and notably wider. You can compare the picture in the box with the wrong drawings provided by Eduard. Even when they knew this and intentionally omitted surely for commercial reason, I am glad that they provide us colorful, original and interesting variations. I´ll get one and made the modification myself.
Regards