If the bridge you have is good and fits well, you can add adjusters to the bridge you already have. As everyone said, it's best to get a luthier to do this, but if you know how to use a drill press and mark a 90 degree angle, you can do it yourself. I'm no great woodworker, but I've done it and it came out well. Get a set of adjusters which are made out of one piece of machined aluminum. Some adjusters are 2 pieces, a wheel and a shaft, fixed together. Might fail one day. Also, get a type where the threaded part of the adjuster is bigger than the unthreaded part. This way you can drill the holes into the feet, cut them off at the right spot(s), and tap out the hole where the threads will go. I put a set of Henry Boehm's adjusters in a bridge I have, and I'm quite happy about it. There are other luthiers making similar ones, I think Jeff B here on the board has them like this too.
Of course, a luthier who's done this hundreds of times will likely do a better job than you on your first try, but I don't think this is impossible to do yourself, unlike cutting a new bridge, which *will* be a mess. Anyway, if you screw up the adjusters, then you're just back to having to take it to a luthier, only now you'll definitely have to buy a new bridge...
Brent