Looks to me like the previous owner took off the casquette, and installed the top yoke from the Thunderbird, along with a separate headlight, and made a dash panel to fit the faring.
Actually, he did what appears to be a pretty nice job with it.
The Thunderbird top yoke and headlight mounting ears costs about $250 in parts, and that headlight is probably another $100. Plus labor.
And that fairing is about $75.
So, you got alot of value in those extra parts, even if you didn't want to use some of them. The Thunderbird top yoke is a nice piece.
The dash panel might be too big, but if you plan it out, you might be able to cut it down into a size and shape that you like, and still use that material. A piece of aluminum like that isn't cheap. I'd try to see what you can do with it, using the same piece. You have to make a dash anyway.
See if you can get creative to use the same material.
Looks like you made a good buy.