Hi Chris,
Your Hb is normal, as is the case for many thal minors. These are the carriers more likely to not be diagnosed because there is little, if any difference between them and non-thals. You will have some smaller red blood cells that are reflected in the low MCV, but otherwise there isn't much difference between you and a non carrier. For you, folic acid would be optional and would more likely be suggested in the context of a B vitamin complex, if at all. Unless you have previously taken iron supplements, your iron level is more likely to be in line with the serum iron results and TIBC than the ferritin, as ferritin levels can be affected by any infection, even a cold or inflammation. I wouldn't say that IP6 is necessarily needed because only the ferritin is high. If later testing still shows a high ferritin level, then IP6 could be considered. For low iron levels, 2-4 capsules daily, about 1000-2000 mg should suffice. As far as your personal supplementation program, antioxidants are important and you are taking some. A good diet including fresh fruit and vegetables also provides plenty of antioxidants. If you are healthy and feel healthy, there is no need to adjust your regimen.
One bit of advice is that if you have children, you should get them tested, because even mild minors can produce thal majors and intermedias when they have children with another carrier. Children always should understand their status and its implications if they are carriers, even when minor does not affect their health. The husband of our moderator, Sharmin has an Hb similar to yours. They have a thal major son. Awareness of your status is absolutely essential.