The sales forum is your best bet. And that might be hard too as most of the folks here won't let go of their torx versions.
Mine had the scissors break and I rather invested in new scissors and fix it myself than to risk getting it replaced.
The torx only came on the original, first run and was quickly, within a few months, replaced by rivets. And that was 5 years ago. So no dealer has them anymore. Especially not an online one. Maybe you'll luck out and find one on ebay in a TSA bin. Then your best bet is to ask one of our US members to reship it for you due to the UK ebay and knives regulations.