dude its not a big fucking deal. if it was swapped to 4ag and you have the lsd as well then why does it matter?? it DOESNT. some of the nicest 86's ive seen used to be SR5, its the same fuckin car bro, no lie. you wouldnt be upset to buy a SR swapped 240 would you? no its not a real jdm 180sx but its the same exact car when it comes down to it. your sitting on gold man and you dont even know it. finish restoring that thing and paint it white. throw some better susp on there and get matching wheels, after that you could easly cop about $3500 on ebay for it.