I appreciate the responses that are concerned with safety, and they are correct. But being in America, where freedoms are eroded daily, I'd say go for the riveting, it's your car. If you ever sell it, caveat emptor! But you should probably mention it.

__________________
1985 300D-189k The 'UD', Ivory and Pinkamino
1979 300D-211k Dark Gray, Parchment
A 1980 Harley-~166k and
A 1994 Ford diesel pickup-349k and
A 1990 gasser Volvo wagon-145k