Buy a used Yamaha MT-10
The first Japanese supernaked arrived in 2016 and has changed little since. Prices start at around £7500 Fancy an SP with Ӧhlins semi-active suspension and TFT dash? Think £10k-ish. Build quality is very good, but check the perspex lip above the clocks. Rust on the underslung collector unit? Worry not, it’s easily removed with a chemical cleaner.