You definitely have a gift for prose.
IMHO you can lick any Bone with a 6wt from a boat. Wading is a different issue, as you don't have the option of unlimited chase. I think the real issues are two-fold: 1. Subdueing the fish with sufficient alacrity that it is not too tired to survive the battle, and 2. If one of the seemingly ever present sharks takes an interest in your hooked prize, will the lighter rod offer enough back-bone to land it before it becomes lunch.
IMO Your 7wt TiCrx should be enough rod.