The 4way OTO kit (really, 2 way!) is OK for now. Do NOT get either the of the tablets. The HTH tablets are a mess and 25lbs of trichlor is too much for your pool, at the end of the season -- you'll end up with a bunch of REALLY stinky tablets that you have to use up next spring.

Use bleach instead, till you can get some dichlor. And, then use bleach + dichlor occasionally, once your stabilizer level is up. Can't you get into a nearby Sams on a guest pass or go with a friend? The bagged dichlor keeps well.