Note that for most of that trip, I-95 runs parallel to the Turnpike and sometimes actually has less traffic.....and no tolls.
Most days, it's a gamble as to which is the best choice.
For the proper answer to your Sunpass questions, call them.
Pretty sure that a Google search for "Sunpass" will lead you to a contact number.
I'm not sure what this means: "you won't be charged for the toad unless its actually being towed." The charges are based on the number of axles in use.
I did not think they had a mechanism to lower the rate when the trailer and/or toad is absent, when you are using the automatic Sunpass lanes, that is.
'07 Damon Outlaw 3611
CanAm Spyder in the "trunk"