I'd go round it and make a list, £200 for alloys, £30 - 40 for a decent door door, £70 - 80 bonnet with vents, £250 - £300 for the trim depending on the condition and so on and so on.

Then you have the lump, gearbox, turbo unit, rad, intercooler, and any bling bling bits.

It will give you an idea of what you can get, but remember, once you have started breaking it it's to late to turn back.

You may end up with a load of parts that don't shift. Try selling it first and break as an alternative.