No worries. I have several old 70's & 80's vintage Fuji's, Treks, & Raleighs with kickstands on all of em. Every one of them has smashed chain stay tubing. The only damage is the paint. No structural issues. I've removed kickstands & taken some black electrical tape & wrapped it around where the paint is damaged. Then, put kickstand back on. That's about all it needs.