i get a faint line in the thc test, does that mean im near cutoff or is it good as a solid line?

There is no meaning attributed to the intensity of a line. Even synthetic urine controls, which contain no drug metabolites, can produce a faint line. A faint line is still a negative.

also i bought some ready clean and was going to drink it 1-2 hours before test then around 24oz of gatoraid.
Detox drinks are a scam. You can spend upwards to $200 on a magic potion and accomplish nothing different that whats accomplished using the same total volume of water and some vitamin B2.

But if youve been testing negative on your home tests with the first void of the day, youre good to go - no need for any dilution. Just drink only enough fluids to where youre able to produce a sufficient amount of urine sample on the day of the U/A.