Well, since I have a headache and don't feel like working, I thought I would play with your ship and see if I could recreate it.
Now, this is very rough. I didn't feel like getting every detail exact.
Based on my experience, it is tricky to recreate this exact style in 3d. You would almost be better off using Photoshop or some other program and just making it piece by piece using gradients and shapes. I mean, there are a lot of very strong gradients your example. I would have to really play with my material settings to recreate that exactly.
Also, there is a lot of detail such as the rings in the metal parts or the details on the red part of the ship that would be easier created in 2d. I'm not going to go through the trouble of setting up custom textures/bump maps or whatnot, so I just created some geometry to give it some detail.
You need to make a lot of bevels to make something like this. I also used a lot of loop selections. I duplicated shapes from one side to the other to save time. Like I said, it's not perfect. I didn't take the time to make sure everything was even lined up.
Depending on your skill level with 3d (modeling, materials/texturing, rendering, etc.) it may be easier to make in 2d instead. You'd probably have to make it actual size unless you go vector. With 3d, you can render at various sizes, but some detail is lost if you go really low rez. That's why a lot of pixel art is made at the actual size so they know how much detail can be seen. Of course, you don't have to go low rez. There's nothing wrong with higher rez art.
I use Modo because it's great for pre-rendered 3d. They do have a cheaper indie version on Steam. I use the full version, but the indie may work for most people. I never cared for Blender.
I can give you the obj or fbx if you want to play with it in Blender. I'm not sure how well it will export to that program though.