You gonna need 4 magnet 5x2,5x2 mm

https://www.unimagnet.cz/kv-05-2-5-02-n_z634/

Model of chainsaw is here:

https://makerworld.com/en/models/119629

I added petrol and oil can. It is not my work, unfortunateli a was not able find original model of gas can anymore.

Here is original link for oil can:

https://grabcad.com/library/mobil-oil-bottle-1