I would drop the salt.
You have to remember that you're doing this to cleanse and nothing else. Nothing needs to be tweaked here. Fasting is a natural response...drinking salt water, not so much.
You're missing out not going to TN. It's much safer and sometimes when things come up on a water fast, people can get nervous and think something bad is happening when it is just a natural healing reaction. The doctors are there to keep you focused and knowing you're safe. Most people fast to completion when they go away for it. When they are home, they tend to bail out early.