Stuff happens I guess.. +Driving light mystery!

Had a smash in my 75 series troopy (no one hurt thank goodness) after watching a mountain biker on the side of the road attending to his bike whilst parking his rear end over the white line - on a crest preceeded by a down hill red light. Not only was this moron too close to the road but he had a children's trailer attached to the back of his bike! Trying to keep an eye on the moron, an eye on the trailer and an eye on the road, I rear ended a liberty wagon and pretty much wrote his car off. The car I had hit had just missed the car in front of him and so on for about 6 cars ahead. A 5 ton tipper with an excavator in the back locked up behind me and somehow managed to miss me and the mountain biker ending up in the emergency lane next to me. Hearts pounding to say the least!! As it turned out, the moron just had luggage in his trailer however every car passing assumed a child/toddler may run out at any second.
Like I said, no one was hurt and that's the main thing. Troopy had leaf spring damage and a broken lens for a KC 4213 spotlight, I won't mention the state of the liberty. The repairer can't find a supplier let alone any specs so if anyone has any ideas on what watt etc it may be I'd be very grateful.
Just for the record- picked car up yesterday and someone has driven it into a carpark or similar bending and scratching my gutters and full length tradie's rack and ladder. Insurance jobs- god bless 'em!