Software and hardware will vary wildly depending on your needs, but it’s always better to start small and work your way up as the business needs it. In the US Creative cloud is the same ($600/yr), most CAD packages will set you back between $1-3k (Rhino->Creo), Keyshot or similar rendering software will probably throw you back $2k.
Then you can easily spend $10k+ on hardware if you decide you need a hardcore 8 core workstation for rendering, 4K monitor, 27" Cintiq, iPad Pro, Macbook for travel, etc. Most designers will still have a computer that got them through college.
Software in the US used to enjoy a multi-year tax depreciation write-off as well, but with the latest tax laws it may be hard to make use of that unless you’re spending a lot of money.