I live near Stroud, and there is nobody nearby. Again, in the absence of SportsItalia (Winchester), it Emblem (Poole) or or Migliore (Bromsgrove) both have their fans. Main dealer in Exeter? I have heard of Peter Chambers in Tewkesbury, but know nothing about them...
This:
https://www.sportsmaserati.com/index.php?threads/south-west-and-cotswold-april-meet-sunday-28th-april-2024.38255/
Should be a nice little gathering.
Another thing to think about is Infotainment.
There is 'no-Bose', 'Bose speakers', and 'Bose'. Bose has two extra knobs either side of the screen. Many cars, like the one below, are described as 'Bose' but are really just 'Bose speakers'...
Weirdly, you need different mounts for the sensors (which are surprisingly cheap), but I guess the sensors themselves may be interchangeable.
https://www.sportsmaserati.com/index.php?threads/qp5-facelift-gts-front-grille.33719/