I noticed that one for sale and was wondering why nobody had bought it yet - looked like the good basis for a project bike and reasonably priced too.

My first NSR250 looked about the same when I got it but on inspection I found a fair few things to be dealt with, some of which aren't a bad idea to sort out on an old bike anyway (especially one that's looking neglected). I'd be looking at replacing wheel bearings, sprockets/chain, engine oil, plugs, giving the petrol tank a flush out, brakes, suspension service etc. I'd also be tempted to have the heads off and inspect the bores, plus when you take the carbs off you can get an idea of what shape the big ends are in. My own NSR was going to be a one month tidy-up and back on the road, but eventually I decided on a full strip-down (except for the engine bottom-end, which may happen eventually too) to make a really good job of it. The nice thing is they're pretty simple to work on.

But anyway congratulations on the purchase, I'm sure you'll have lots of fun with it whatever you do!