Nice job, seems almost good now.
Final remark before you go to unwrapping: lose the extrudes for the canopy. The indent on those things will probably be less than .5 cm in real life, so there is no reason to indent them like that. You could probably lose 50 tri's there, I'd spend those on rounding the intake you added on top of the nose, which looks way too blocky now.
edit; here's a pic:
http://farm2.static.flickr.com/1082/...e544fd.jpg?v=0
You see the glass and metal pillars are on the same level, no indent whatsoever
And I really would consider modelling the exhaust real lowpoly. If you do a decent normalmap, you might even be able to get away with 3-5 tri's per exhaust pipe, meaning you'd ad a max of 60 in total, not too bad I think.