the Mi1 or TC5 would be my choice though the T3r wouldn't be a bad choice either. id personally buy a used chassis and save some money for spares. i don't know where your at with driving skill or what classes your gonna run it in, but you can get some nice cars used for around $150, then spend the rest on spares you will inevitably need.
TC5 was my first car. I dont have any complaints with it aside for not being optimized for lipo. but once you balance it right, handles well, its fast and its cheap to run. pretty durable too.