Did Peter make the surrounds?? Did he make them like a pocket as the Chisonics are meant to be top mounted..
Nope. These are the CSs as used on the Lakland semi's and they come with these surrounds. They don't quite cover the cavity though, so Peter will make additional surrounds that will cover the cavities and the original GoldTone surround's drill-holes.
The Model 1 is a good option, apart from the fact that they're black instead of chrome covered. To my ears, the Model 1 sounds pretty similar to the TB-Plus in my SG Reissue.
I've mounted a TB-Plus sidewinder on my Rivoli and it didn't work. It's got loads more hi-end than the DiMarzio's which caused serious feedback problems. I've tried out a succession of PUPs ( including the Gotoh and Artec replacements ) and agree the DiMarzio's give the best results, the Willpower does even better than the Model One because it's hotter.