With how many miles the car has, it won't have too much more life left in it. If you are mechanically inclined, used Japanese imported engines can be sourced fairly cheaply, around $600 or so for one with 50K miles or so. This is only really practical if you are doing the work yourself, otherwise expect to pay a pretty good amount for someone else to do the swap, plus a new timing belt, water pump, plugs, etc. Plus, the transmission, wheel bearings and such are probably worn if they haven't already been replaced.