In the final, it's the imposing Barley Pickers facing off against the formidable Boat Buoys. In their final build, they must construct a boat which will lay siege upon many floating targets. Their boat will have to maneuver it's way around a course and destroy three objects along the way. They must first destroy the 'harbour gates' then pilot their boat around an island back to what's left of the gates to knock down one of the two support towers. Then it's off to sink the enemy (well, one boat anyway) and then race to the island. The first team to get to the island and release a flare is the champion for the series.
 

The Boat Buoys are building...they're building...uh...er...well...it's gonna be a boat. Their basic design is a pontoon boat with a swinging ram at the front for piercing the other boat and something at the rear for knocking things over. They will also incorporate a winch to pull things over and two claws at the front to hold onto whatever they might be smashing to bits. OK, based on my hemming and hawing, I think you can tell that their problem is going to be settling on a design and building it.

The Barley Pickers know what they want. A fibreglass boat will float them along and at the front will be a hydraulic pincer. The jaws will open and close, allowing them to rip into (or punch through) obstacles.  For power, a big diesel engine will be mated to the jet drive from a seadoo for maximum power. However, attaching big, chunky metal bits to fibreglass is not going to be easy...especially when you consider how much weight will be resting on the boat. Hydraulics have worked once before for this team...will they continue to work?
 
 
 

Barley Pickers TC Sim Oakley	Boat Buoys TC Peter Hillman
The first design of the Boat Buoys	The Barley Pickers destroyer
This boat is good but will it float their heavy plan?	The 2nd Boat Buoy design has three pontoons
One of three pontoons they'll use. It's sealed which should make it quicker to build	Unfortunately, the design is so heavy that it takes all 8 team members to move this one piece
Expert Paul Mara	The 3 massive pontoons are in
3 outboard engines will power the Boat Buoys along	The Barley Pickers are getting more hydraulic rams from this truck
A deadly, pointy pincer prong	Pontoon Patching...perfection!
This winch will make one of a number weapons on the barge	The jet drive gets installed
A claw to hold onto their prey	Hopefully, hydraulics won't fail this team