Hi Sumo1, and welcome to the board! There are many much more experienced folks on this board, but here's my 2 cents:

- TA might be slightly high - ideal range is 80 - 120 ppm
- I'd tap the brakes on adding a gallon of muriatic to handle your pH. If your pH really is 8.0, adding a gallon of acid to your 27k gallon pool will lower your pH to around 6.8 (according to BleachCalc). Start with adding much less first, say 48 oz, then retest after allowing to recirculate for 30 minutes or so.

I think your other numbers look good. Good luck!