Are you sure the TC7 posts will fit for the TC6.2?
TC7 uses different bellcranks which have to be turned upside down to build the floating assambly. So I don't know if you can use TC7 posts with TC6.2 bellcranks. Geometry might be different ...
Other possibility would be also useing TC7 bellcranks - but will the steering geometry still be the same as the TC7 steering blocks are different es well and the links attached from below?
Can't tell as I don't have any TC7 parts to try ...