I just had a look at this, not a bad base car to do further work on.
Realistically its going to need putting on a gen 90 and mapping, i would imagine that would cost £1500.
If you already own a clio, its probably better to do what clio172T has done, rings, new clutch, new turbo and a warranty with engine dynamics.
If you don't already have a clio, it could be worth buying, as long as you are prepared to invest a fair bit more, i seem to remember someone with an evo owned it and sold it after 3 months.