My advice is to not go for a cheap 350z unless you can work on them confidently by yourself or with friends in the trade. Make sure that you can get a good look under it at the W brace and rear crossmember stays (kidney shaped) to check for rust. I paid £4250 for mine nearly 2 years ago (80000 miles) and it failed its first MOT due to rust 5 months after I bought it (car was sitting low on HSD coilovers so I couldn't get a good look under the car when buying it). Luckily they were all bolt on parts, but still set me back £400. Along with that the rear brakes needed changing (pads, disks and handbrake shoes) which set me back around £250 for the parts, but I changed them myself. My Banana arms need doing too so that's going to be around £250 fitted by myself, I've also done the front and rear drop links at £100. It's not only the big things with the Z too, there are a lot of small niggly bits that need sorting (unless you're not too OCD). All of the parts mentioned were not in my plans at all for the car as I wanted to spend money on the aesthetics rather than mechanics. Sorry for the slight thread hijack, but I wanted to share my personal experience with you so that you don't waste your money on a poor example.