The arches are the correct ones for the kit, not Tuckin ones so they will all just bolt on. I'm trying to track down some of the history of the car, but I'll load some pics of how it looked when it was all fitted.
I have some PIAA lights that were from a Rally car I had a few years back, they would fit in theory but I'll leave the holes for induction rather than hanging a load of weight off them, they seem to crack a bit too easily with the lights fitted from what I've seen.
Russell.