The interior windshield trim pieces are not being reproduced. I'm also going to install visors in my 55, so I bought used 56-57 trim pieces from
ebay. I have yet to remove the original trim pieces, so I don't know what to expect to find beneath them. I will say, however, that the visors + hardware shouldn't be so heavy that supporting them should be an issue. The trim pieces are chrome, not stainless. I'm hoping mine can be polished out; otherwise, they will have to be re-chromed. Reproduction visors + hardware will set you back over $300.
Considering the T-birds were Ford's "personal luxury car," and mine is equipped with both tops, Fordomatic, power seats and windows, you think Ford could have included visors. Mine lacks
power steering and brakes, as well, but at least they were available options in 55. Visors are a safety feature, so are seat belts, both of which I intend to install.