I missed this post and have gotten severl PM's about this event so ill post a PM reply here and should be what your looking for.
Part 1 is fairly easy. You have 4 constructs up + the named. Killing 1 construct makes the named charge your raid. Corner him and dps him. However you will want to keep atleast 2 to 3 of his pets down. He will respawn them every so often. Just make sure only 1 or 2 is up at a time. The more up the more powerful he is.
Part 2, is the exact opposite of part 1. And is much harder. Named + 4 constructs, killing 1 construct makes the named charge the raid. DPS the named however here is the catch. You will ALWAYS want atleast 3 of the 4 constructs up at a time. If you only have 1 or 2 up, the named sends his power to his pets and they become very very nasty raid wipers. Even without power up the pets still hit harder than in part 1. If he summons his pets and you got only 3 up in the zone, you cant kill them till the 4th spawns or you get screwed so your forced to offtank, which you need good knights or warriors one on them.
If your guild doesnt mind doing simi exploits to events then simply make a group with 4 knights and 2 clerics. Have the knights agro the golems as they run to the raid, and run them out of the room doors. This will leash them, they will reagro but then the knights can run back and rinse repeat. All the while the knights are doing this the raid is completely burning down the named. Works very well and is super fast. We have recently went to doing this ourself rather than muscling the event and wasting 30 + mins.
Part 3, easiest part. Named. Take him to a corner and kill him. Every few mins a construct wanders into the room. Kill it then back on named. Easy.