My first advice would be to make the move after this batch to corn sugar (dextrose) for carbing. Then you can dissolve the sugar for the entire batch into water, add it all at one time, and bottle all of it in bottles or growlers without needing to measure out anything per container.
Yes, you can bottle in a good growler - I use the fliptop kind. I'm not sure if the screw-tops hold well (someone else can chime in). I would think that you need as many carb tabs as you'd need for an equivalent amount of beer in bottles. Do some measuring.