Where can I purchase a dipstick for this vehicle?

Hello, I'm trying to source a new dipstick for the Daihatsu Sirion SE M301 with K3-VE engine.

My wife recently purchased a 2005 Daihatsu Sirion SE 1.3L auto. As this is her first ever car, when she got home I wanted to show her how to check the oil level, but we discovered that the dipstick is broken with the end lost in the chamber. It's clearly an old break that the previous owner had simply ignored. Very annoying. We've got it booked into a garage to have the other end of the stick retrieved, but we're having a hard time sourcing a replacement part, and so is the garage.

I'm not the first to ask this question and I'm inclined to think these dipsticks aren't well made.

https://www.2carpros.com/questions/daihatsu-sirion-dipstick

The dipstick itself appears to be entirely made of plastic, which is something I've never seen before. Every single car I've ever owned had a metal dipstick with plastic only on the handle. It looks like the plastic has become brittle with age and heat and simply sheared off halfway down.

If anyone knows where we can purchase a like-for-like replacement, or even an appropriate generic alternative, then I'd appreciate it.

Our garage has asked for a part number, but I can't find one on the remaining half of the dipstick, nor in the owner's manual.

One or two websites I've looked at have shown multiple generic options that would supposedly suit this vehicle, but the lengths have all been wildly different which gives me zero confidence in those sites.

Make: Daihatsu
Model: Sirion SE M301
Engine: K3-VE (EFI+DVVT)
Year: 2005
Fuel: Petrol
Transmission: Auto
Country: UK

Any help is grately appreciated!