15 days ,Don't worried some good modelers take years in a single model, I tried to take no more than 3 months .
I knew it when I saw those beautiful round shapes,My friend take and advise learn how to export more than anything FIRST...
,for example
I watch my model in FSX While I'm making it ,Animations ,shapes IN THE FSX GAME I use FSX-SDK-SP2
I'm working in a md 83 at this moment working on its flaps animation ,so I make then in gmax (Its the same as 3d max 5,7,9,) I'm showing how I do work and so far it has work very well for me
Never forget this
You can't never start a proyect without Using 3dmax or Gmax AND FSX/FS9 Both as a design tools
otherwise You won't really see what are you making ,just because you see it in max it doesn't mean it will shown in FSX the same
Now I see you have some Vertices issues ,Right?