Hello guys,
I've finally found a company which makes halfcages for our platform. So if you can put it in the tracktool, daily racecar, weekend turbo warrior, or just for the racecar looks.
They have them as a weld in and bolt in. Even a DIy set if you'd like to build it yourselves. Even in multiple different colours!
https://www.jp-cages.co.uk/product/honda-civic-mb6-half-cage/