you will have fun...I've enjoyed learning over the last year and am looking forward to spring and summer. I got my nuc from Beewise in O'Connor but I assume you can also get them from Guilfoyles (likely closer for you). You want to place an order tomorrow - I was on a waiting list and ordered mine about 4months in advance of actually having my hive.
As for location of the hive, my house sits almost perfectly E-W. I've got my hive located on the South side where it is protected by the fence from the wind but still gets the summer sun and late winter sun. From what I've read they typically recommend morning sun to help the hive get active but that isn't feasible for me. With the rains and winds this winter I had a few issues with water ingress through the roof onto the top board/inner cover so I had to make a new one and swap it out (it got really wet... but thankfully the hive itself was dry and the water only pooled on the top board. In the end I've had to put aluminium flashing over the roof to keep the water out but I'll be removing that as it warms up.
In addition to the Ag Dept you should also reach out to WAAS (waas.org.au). They run courses that will help you with the basics and can be a good way to meet people. UWA also run a course that is great (https://www.extension.uwa.edu.au/course/CCQL002) and well worth it in my opinion (I did it). The UWA course fills up very fast, so join the waiting list and when they run the next one go do it; from memory it is one evening and a Saturday in duration. I also did a weekend course down at Fairharvest (Margaret River) but I'm not sure if they are still running them.
I'm not sure if you have other pets but I've had no issues with my dog (I have a small barricade to keep him away though). If you've got alot of land and have horses or similar I've read you need to barricade the hive off so they don't treat it as a scratching post and knock it over.
Finally, don't forget to provide a water supply for your bees. And bee's can't swim. So having water lillies, or reads or even gravel (rocky pool) will help. Oh, and don't have the flight path going across any laundry....
Feel free to get in contact. I'm happy to share whatever I've learnt and learn from whatever you pickup as you go along too