lol marked as spam, trying to link to the aliexpress part i found. thanks to dan for part number. you can find the part number on aliexpress. %#*@ they're so ridiculously expensive.
in case anybody else is going to sink some money to repair their imac 13,2; my hinge is also broken and apparently covered by apple or authorized repair shop: gotta give 'em some credit for that, nice. https://www.macworld.com/article/3145797/macs/apple-will-refund-you-for-your-imac-hinge-repair-costs.html