I daily my 83. Sure, it needs attention from time to time, but certainly not any more than other older cars.
Parts are sometimes hard to come by, but not impossible. Just depends on how hard you're willing to try.
I'm positive, if you look long enough, you could find a good used engine to drop in and be on your merry way.
There have been a few offered here on this forum, sometimes for free!
Going EJ22 is also an excellent alternative, and really not that difficult.
If the body is in good shape, then it's worth, in my opinion, putting a little time and money in to have yourself a cool, retro ride that will be a fun, dependable car with the right care.
I love the 2nd generation styling more and more as they, or I, or both, get older.