Depends how much you buy the donor parts for.
As an example, I paid £70 for one clear headlamp and £65 for the other, then had to buy a dremel and sealant. Probably cost about £180 for the headlamps.
Clear Side repeaters cost about £15 each.
Rear lamps, I bought the clear ones and tinted them. They were £100 from ebay.de and then spray tint was about £10.
So all in it cost me at least £320.
You can do it for cheaper. Red tint your orange rear lights, dark tint your side repeaters and use a template to make your own clear hockey sticks, but I wanted OEM stuff which I think looks better.