You might want to call aroudn to some local shops. Locally they run like 750-950$ around here dedpending on the number they have.
Yes that motor will fit, thats the GTX/BPT. it prob comes with the Tranny which is AWD, but the FWD tranny on your car will work. But you could upgrade to the DOHC tranny which came in the LX proteges (1.8 DOHC) or Escort GT's or Mercury Tracer LTS. BUt it s not neccesary. You willl need the ECU-Harness - And a upgraded fuel pump for safety. but the ECUs are hard to find, so u will need soem kind o engine management, to run the BPT to its full potential. ITs a fairly simple swap. A friend of mine can do it n 2 1/2 hours...lol i havent done it personally tho.
That link has some good proces tho, but shipping is gonna kill u on a motor. So i would crack open the phonebook, and get to callina round for a mazda BPT/1.8 Turbo motor. But if you dont have access to one locally, they might be your best bet. But they also show up on ebay alot. And there is also soem being sold on clubprotege.com for 950$+ shipping from a good seller.
You have other options:
NA BP 1.8 DOHC (escort GT/Protege LX/Mercury Tracer LTS)
ALl u will need is the motor-harness-ecu, and your set. Its identical to the BPT minus the turbo. But it has a better Cylinder HEad than the BPT and breathes better. And the intake Manifold is different, and the compression is obviously lower. BUt its almost identical. 130hp-1120tq alot of fun, and a great motor. Everythign from the BPT will swap ight over to the BP (turbo-manifold-intake manifold etc..). Same design, just different internals and a nice TURBO!. Adn the parts needed for the swap will eb very easy to find. considering the BP are a dime a dozen in the States.
KF-ZE 2.0 V6 170hp-150??tq from japan
Nice motor a friend of mine had a turbocharged KF in his MX-3 and it was freeakish scary fast, but it eventually blew up

. But to get int hte pro, u will need the MX-3 crossmember/ v6 mx-3 tranny/ ECU harness. But the motor is expensive to repair. IT looks perfect in the protege, fits like a glove, but it wont be a simple swap.
KL-ZE 2.5 V6 200hp - 180tq? from japan
ALmost identical to the KF visually, Same install materials will be needed, but its a great motor. expensive tho.
You got plenty of choices..check out
www.clubprotege.com u got plenty of info on swaps there.