I owned a Silverburst Epi for a short amount of time: I returned it as ergonomically the body & neck
absolutely didn't work for me, although I should have kept it to flip for profit, as this was when they were
just running out - I believe I got one of the last in stock @ Musician's Friend.

The Chrome pickups are much more humbucker-shaped than the Bartolini-shaped "TB Plus" pickups found on the standard Thunderbird, so it would take more-then-a-fair-amount of routing for new pickups. Plus either that, rewinding of the chrome pickups, or purchasing the heavenly [Invalid or Expired Link Removed] pickups @ $289
per pup would be so much you'd have to truly think if it would be worth it to put that kind of money into an EpiBird. Although I
will say that the Mahogany-bodied Silverburst sounded a good deal closer to a Gibson then the Alder-bodied standard versions. Damn, maybe I *should* have kept it for a "Stage"/tinkering bass...
...I also haven't seen them in stock anywhere since around December, so the used market would likely be your only place to find one. Given the relatively small amount made, it might be a tough find.