Getting the parts is the cheap bit, however, if like me you lack the skills to be able to carry out the tasks yourself then you need to ask whether it is financially viable. Then you need to factor in the cost of tools etc.
A respray is gonna cost £1500 at least for a decent job. But if you go this route all you will need is a decent set of wheels for the car to look great
Tuning can be expensive for relatively low gains but suspension and brake mods are good for getting the most out of what you have got
Plus if you come up with a direction you want the car to go then you can keep your eye out for parts as they crop up every so often
Good luck
