I want some parts. PART IT OUT
That is a very good Galant with some really awesome mods! But the problem is that people are only willing to pay so much for a Galant, no matter how good it is . (Number 3 notwithstanding )
I would remove some of the more expensive mods (front mount I/C, FP Green, Shep tranny) and replace them with stock, or close to stock parts. Then, you can sell your Galant for ~$4500-$5000 as it will be much easier to find a buyer for a cheaper car!