What are you going to do with $800? You're going to blow your whole budget on the turbo and just stare at it in your room. You dont have enough money for the other parts that you need, the manifold, the intercooler and piping, blow off valve, wastegate, downpipe. What about fuel injectors, fuel pump? What about tuning?
Keep saving. You need at least 2k, Id say 3k for a GOOD kit, plus tuning.