If JF want to buy it i could collect it form Daryl some time I'm passing his dad's place. I've been there a few times.
Perhaps a picture or 2 of it would help sell it or a link to where it was originally bought form?
I have an Ali undertray, thats at least 4mm thick, that I previously used on a 'track-day' car but have decided not to as it hinders cooling. Not willing to sell it though
I will post a pic when I can, might take a while though but in no rush selling. It is an original off of Alfa Romeo Community: alfisti.net. They appear to have stopped selling them. Says it fits all 156 TS and JTS engines, including 147 TS.
I have an online receipt for proof of purchase. First of November 2008 this was purchased, remained on the car for 6 months approx. Stored in garage waiting for me to buy a GT which has never happened.
The car normally comes with an undertray. In this case it has vents etc and no heat issues are encountered from anyone that I heard. The main difference between this and an oem one is apart from the obvious material difference, it is sturdier and gives far more clearance. I would use it myself if I could still fit it. I might yet hold onto it and fit to a GT if i get one (always wanted one).