I would trade it for a Consolized MVS, or a regular MVS with a few good games. If you already have an AES collection, I would trade for one or a couple of the following games, depending on the value of the games:
King of Fighters 94-2003 (I actually don't own any yet!

)
Last Blade
Last Blade 2
Real Bout 2
Sengoku 3
Samurai Shodown 4
Samurai Shodown 5 Special (unfixed only!)
The value of the system with it's condition and quirks taken into account is about $350, so I figure a combination of the above games that matches $350 in value would be a good trade. LMK, thanks!