So I don't think you are all that out of line in pricing it at $7k and leaving room for negotiation. Maybe lowering the price to $6500 and say OBO will get some calls. Since it's a N/A you will need to really stand out, ie lots of mods, on eBay to get the right price. We are also getting close to winter so a Z32 is probably not all that much in demand this time of the year. When I was looking I had a mental check for under 100k miles so that might be another thing hurting you.