API KH & GH tests use 1 drop = 1 GDH (German degrees of hardness) = ~17.?ppm. For pH let the tap water sit out in an open container for ~24 hours. Many water companies raise the pH temporarily to protect their pipes but it out gases.
If you don't have fish yet (& I think you don't, right?) dose ammonia as needed to keep it at 2ppm. You can skip Stability, if after 2 months it hasn't helped, it won't now. Check ammonia, nitrite & after you see nitrite check nitrate too. You should be quite close to being cycled by now if you've been dosing ammonia to 2 or 3 ppm all along.
Don't worry about the cloudy water right now. After the nitrite goes to 0 the nitrate will be very high & you will do a very large water change. Re dose ammonia to 1ppm & make sure it goes to 0 in less than 24 hours & nitrite is still 0. At that point you'll be ready for a "tankful" of fish (or well, almost, don't get carried away, lol).
The 85F temp is too high for almost all fish. Work on adjusting it to ~76F, heaters can be difficult to reset so allow several days to get it stable. Your fish choices will determine what temp you'll want...& to some extent your pH & GH will help you make good fish choices. Run your numbers for those by us before getting fish. Some fish are more fussy, but many are not, & many are farmed these days so don't believe the old "wild caught" native water parameters.
You're almost to the fun part of getting fish!!