We once moved a weld-in Autopower cage from a Scirocco I to a Scirocco II (remember that, Brian?). IIRC, the only mod was to shorten the forward hoops (over the doors). It was a much better fit than the Autopower cage that was actually designed for the Scirocco II (issues with cage too close to steering wheel). I had a Safety devices cage in another Scirocco I and thought it might transfer very well to a Scirocco II (assuming new sill plates, etc.), so I'm surprised to hear that it didn't work out for you. As far as the kits, I think I'd pass and have something custom done. There's a custom cage in my current Scirocco II that went in to replace an Autopower cage that was deemed non-compliant (rear brace angles measured by tech and found insufficient). There's alot more that you can do with a custom cage given the current version of the IT cage rule.
