Good for Vintage! My first guitar was a Vintage SG copy, bought in Glasgow when I was about 13 or so. This was before Wilkinson came along, and before they revised the outline to make slightly less of a dead on copy. That guitar saw a lot of abuse when I was a teenager.
I quite like this bass. What puts me off it slightly, and it is the same for the Gibson SG basses, are those massive cloverleaf tuners. It makes the Gibsons look like Chinese copies. Get some Grover Titans on there and I would be happy.
A full-size bridge pickup means you could stick any rail-style humbucker in there.
A Fender-style bridge means that you can adjust individual saddle heights. Blasphemy! I would stick a Gotoh 201 or Badass/Omega/Kickass on there and call it a day. I would stick on some Norlin-style ES-355 knobs and call it a day.