Some of this might be repeat but just thinking the event through in my head. Walk in kill assistant, knight tank geartop to 80%, first suit spawns warrior tank that and kill it, dps geartop to 60%, second suit spawns kill it, kill geartop, bargangle and patch spawn. DPS patch discs aren't necessary unless you're really hurting at this point, once patch is dead burn tinkerson. If you get the big mana drain at the end just deal and burn harder.
If you choose to kite patch event seems alot harder and makes looting very difficult. I recomend killing patch.
Oh and one more thing that might help, you can CH rot gear tank and suit tanks. Also when tanking Tinkerson you need to find the perfect spot where your melee won't be eaten by AE ramp and there are spots in the room where you can achieve this, find them.