For appearance purposes there are lots of universal options. Side skirts specifically can be purchased dirt cheap on ebay and amazon then trimmed to fit.
I love the look of the Alibaba canards so certainly take a looks at those.
Not sure what spoiler/wing you have but even something lower profile enhances the appearance. That being said just about any wing will work with the appropriate mounting hardware. If you find a wing you like having a fabrication shop mock up some mounts is of minimal effort and expense. Some of the cheap fiberglass ebay parts can be sacrificed to design a production piece.
One of my most favorite looking TT cars is the TTRS-R from ABT and honestly the external modifications are minimal. You will likely find very similar pieces for cheap that you can customize. All can be wrapped gloss black to match OEM parts.
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