Tipping bucket first flush diverter

Hi all,
I just got a new rainwater tank and I'm looking to install a first flush diverter. I'm using zincalume downpipe rather than pvc so I don't want the usual PVC T style first flush diverter. Instead I was thinking of trying to build a "tipping bucket" style diverter as shown in Bill Mollison's classic “Introduction to Permaculture". I'm wondering has anyone actually built one of these? If so I'd love to hear about it and see some pictures, thanks.

Might be more complex than you really want, and will stop functioning during winter if there is snow or ice.

I was thinking of using an "overflow bucket" style diverter but with a wide tray bottom to promote evaporation to reset it.

Dont forget you need a debris screen upstream of the first flush diverter! Else it will fill with dirt and compost and youll be scooping muck out of it annually!

I also am still in the design phase and would love to hear the thoughts of people who have built one.

Thanks Daniel,
There is no ice here, east coast Australia. I think I could maybe add a screen over the tipping bucket or gutter.