they have the screamer set which i owned briefly and if you take out the stock ceramics and put in a A5 the bridge and neck sound very similar to the JB/59 set.Well for $40ish pickups, I'm going with Dragonfire. They don't have a JB as far as I know, but they do make some great pickups, and for the money, you can't go wrong.
I tried their Gold Foil humbuckers with alnico mag. I absolutely loved the chimey character of the highs, but the lows were REALLY muffled sounding. Could be the guitar I put them in so I'm going to reserve final judgement until I try them in a different guitar...probably something like a Tele. Man, if I could get that chimeyness throughout the tonal spectrum, I'd be in heaven.
And yes, the Dream 90 is also an excellent sounding pup. I've got it in one of my latest builds.