Had you been asking about springers, I suspect there would have been about 5 suggestions, and a bunch of agreement with those 5. Despite the fact that I've now owned 5 PCP's, it never really occurred to me how much variety and price differences there are in these rifles. It's even more interesting to note that your projected rifle budget quickly doubled or more :-).
One thing I've noticed no one has asked, what's your intended primary use? I know you said long range, but is that just paper, or hunting? Do you want/need the extra expense and complexity of a repeater, or will a single shot do the job? Keep in mind, very few standard air rifle pellets will tolerate velocities in excess of 1000 fps, so having a rifle that can launch a pellet at 1500 may be good for your ego, but it probably isn't going to hit much. If you're hunting, a well placed hit at 15 fpe is far more effective than a miss at 200.
I started with springers, moved into PCP's, messed around with modding the Air Force rifles, went the all out power route, my cutomized Talon SS could easily match or exceed the power of a Condor. Finally took a hard look at the kind of shooting I was doing and realized I didn't need super high power, high caliber rifles for my shooting. .177 ended up being the answer for me, I shoot a lot but it's mostly at paper or other targets, and ranges up to 50 yards or so. The occasional hunting I do can be handled quite nicely by a 20 fpe rifle, mostly birds but with the occasional squirrel or ground hog thrown in. In hunting, it's (almost) all about shot placement, and knowing the limits of you and your rifle.
So my long winded advice is, decide what you want a new rifle to do, decide on a budget and stick to it, think about the stuff I mentioned above, then buy the best rifle you can for the money. You can get a used AA 4XX for well within your initial budget, the older bolt action single shots are even more reasonable. The higher end rifles may get you a few more bells and whistles, and there MAY be a hairs breadth difference in accuracy, but whether it's worth the extra cost only you can decide. Hope that helps some, and looking forward to your final decision :-). Later.
Dave