Kelley Blue Book is $4400 on that car. $5000 in mods doesn't improve the value of that car in any case. You need a buyer that likes it. The farther you deviate froom stock without go-fast mods, the harder that gets. There are only 2 go-fast mods on that car that combined will yield less than 10hp on a DX, the rest is cosmetic & stereo equipment. That translates to rice (all show no go) for most people no matter how well it was done. I think you'll have a hard time selling it at that price.

Option: part out the "mods" and return it to stock, sell it stock. That will ensure you get top dollar for all of it. I've had to do that to a 400hp GS-T before. Most dealers will appraise modified cars at a lower price because of the fact that custom parts are harder to replace, and usually not as high quality as OEM.

Good luck, though.