Purchased the pre made rigid and flexible fuel lines from aircraft specialty. Definetly was worth while. The areas are very tight and making your own lines would have been difficult. On vansairforce many people were replacing the stock fuel pump due to being loud. I think for now we will stick to the stock. Also the fuel selector us somewhat non standard being left and right are shifted. This would change the line routing if it was changed. Sticking with stock for now. Be carefull on tank selection.