The bridge on a P- or J-bass does sit very close to the rear edge. Of course the original Fender bent-metal sheet bridge design is a lot thinner on the section thats bent upwards than the rear section on most replacement cast bridges, so the gap between the bridge and the end of the body is smaller, despite the saddles being in exactly the same place.
It may only be a couple of mm extra, but the visual difference on the bridge to body-end gap is significant.
Ok thanks Simon, I wasn't aware of that set up. Im getting closer to the soldering stage, I'm thinking about a set of Seymour Duncan pick ups. Huge variations in pricing. I have a niggling urge to get a nice pair of puppies and I may get them sooner and put them in rather than the kit pickups, ??? Whats your thoughts ?? Are the kit pups ok ???