I went to ideal electrical, it was expensive. Some people have had great luck with the weather proof boxes at bunnings (https://www.bunnings.com.au/ezy-storage-waterproof-ip67-storage-box-50l_p0204842). If I were starting again I'd go that route, very cheap for what you're getting in the range of protection and size.Where is everyone getting their enclosures? I've looked around and I can't find anything big enough that isn't super expensive.
Theoretically...I thought enclosures need to be rated for 240v. i.e. with stand certain temperatures without catching on fire/melting.