the lights, grill and under light trims were about £100 all from ebay. The problem I had was trying to accurately cut from templates, hence buying the back plates from a 300.
Once I had these it took me a couple of evenings. drill all the spot welds out of the old panels, then get fed up with the last few and grind them off!!
Attach lights to new panel, lign it up with the bonnet etc and tack weld them in place. Remove lights, permenantly weld backing plates to car, fit lights and grill...
I also upgraded all the wiring whilst I was at it.
The most time consuming job was cutting the grill out neatly to fit round the winch...
Sorry no pics of me doing it