Two Sprue Type Designs

We need two vector designs that will be suitable for cutting out of a wood board. These should be of a sprue for a car model. Each board should be 8 feet wide and 4 feet tall. This should include a 6 inch border around the edge. They should contain a number of car parts, including wheels, a steering wheel and various recognisable engine parts. There should be about 5 to 7 parts per design. They should all be interconnected and appear like they would snap out as would be in a sprue (please see attached images). The designs are going to be CNC milled out of wooden sheets. Therefore they should be 2D and have single vector paths that can be followed by a machine. Two colours can be used to demonstrate where the material would be and where the cut outs would be.