The amp seems to be in a really bad condition physically, Nobody who's looking for a decent sound system would buy such a heavy, brick like thing. You should really see those chinese products available in our market. Light weight, compact and sesky appearance, and available for 4k-8k easily. China is going to give a tough time to JDM products, at least in the car audio industry.
Try to give us a reason to buy this amp. as most of the potential buyers don't know what it is, and the one's who know ain't gonna buy it.