I agree with cloning the beginning into the helix, and then doing a latched section or two without a lift hill. My only issue with Taron is the height requirement at 51". I would really like to see them keep it at 42" or even get it down to 39".
A GCII to replace TNT would be decent, but I'd rather they simply come in and do a proper replacement with a new "mine train" that mimics the original with some additional sweeping turns or something. SDC needs a true family coaster like TNT. It's an important part of the coaster lineup and for many of us that was our introduction to "big" roller coasters. I love wooden coasters to death, but we all know they are a challenge to care for. SDC doesn't need any more challenges at the moment.