Take this file:

and import it into your skin. This is the exhaust taken from the 205 default skin (it's at 1024 resolution, the 202 is only at 256). It will look a lot better when done. This is from the port side. Duplicate it and flip it for the starboard side. I think that's the last thing that's bugging me, aside from the small corner of the canopy where the green doesn't match up (and that's not too noticable).
EDIT: The 202 and 205 skins are almost identical. You could just take the 205 skin at 1024 and put it above your work. Then select the exhaust stacks, and remove everything else. (that's basically what I did on these). Then just move it under your weathering layers.