I haven’t played the Performer, but I have the other two. The JMJ is lovely and that custom pickup, plus the fitted flatwounds give it real gravitas and makes you just want to play it. However, the Vintera is no slouch and I enjoyed playing that very much too, although it isn’t quite in the same league. But change the strings out for flats and you’d be getting close to the JMJ and saving a pretty penny or two. The Gallery have them for £649, which is a good deal IMO.
https://thebassgallery.com/collections/all/products/fender-vintera-60s-mustang-bass