I wouldn’t rule out the 4/4 Sport either.
A few years ago I had replacement roll over valve fitted to my 4/4 Sport Sigma (with no spare wheel for access) this was done at Williams Automobiles, and from memory they only had to remove the plywood shelf behind the seats, unscrew the side screen storage tray, and pull it out for full access to the fuel lines etc. I don’t think it’s a big deal, but I stand to be corrected ?
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![[Linked Image]](https://www.tm-img.com/images/2021/03/09/AF6B1D34-7A68-4B8A-B860-D87ECB5E48D5.jpg)