I am currently doing a nut and bolt rebuild on a galvanised 30tdi chassis, I will have running gear and engine of 300tdi I have a puma dash I want to use with puma heating system, do I get a 300 to or td5 chassis loom and again a tdi td5 or puma bulkhead loom? I want all the buttons on the centre dash to work, I will he making a speedo clock/rev counter out of tdi clocks