Built a kit one from DIY wood fired ovens about 9 years ago. Was a piece of cake . Shit hot , one of the things I miss most after selling that house . Would have another one in a heartbeat if wood wasn't so scarce in Exmouth

 yeah mate, been there done that. I looked at the option of building my own from scratch, but opted for a complete kit from alfresco ovens in Wanneroo instead (I thinks their actually in yangebup)

the dude that owns it is a pretty keen and good fisho as well and I bought a complete kit, with absolutely everything you need, for about $2k. Bloody glad I went with that option as opposed to building my own from fire bricks, vermiculite and mortar. The end result you get from a good diy kit just looks and cooks far better in my opinion. 

What did come as a surprise was the amount of time, and effort associated in building a solid foundation! You see, I did 180mm concrete slab, then besser block walls, then a free standing concrete bench top 100mm thick, then the pizza oven, then tiling, then a sink. Ect. The time consuming part is not only laying the concrete and bricks ect, it’s the waiting time for everything to cure in between. All up it took me about 2 months working on the total build from go to wow.(only tackling it on weekends of course) But I couldn’t be happier with the result, cooks crayfish pizzas in about 2 mins flat! And gets to 380 - 400 degrees in under an hour, and stays hot all night. 

If you pm me your mobile number, I can send you some pics, but I would highly recommend the alfresco kit. The actual pizza oven built only took about half a day, and still looks awesome even after a few years in the elements. 

Scano

 I built one in Busso, easy as. Get a pile of yellow sand, make your mould from that and away you go. Google it, there’s tonnes of stuff on there.

 Use a fitness ball that is inflated, build around that, pop the ball when you want to get it out and are finished building the dome. 

 I cheated and bought a Uuni3 , it's a SS table top unit.runs on wood pallets.

 theres better things out there than the unis, pizza party pizza ovens are a way better option and wood fired, also if your into bbq and smoking check out the kamando joe does awesome pizzas aswell and is very versatile, ill be getting the latter as soon as funds are available.

I built one from scratch using refractory materials. Fire brick floor, cast dome, insulation wool then cast insulation material over top. Ended up being a very cheap build but I was able to source most materials through refractory companies at work.

As above, the base has to be very sturdy as there is a lot of weight in the oven itself.

Lots of information on the net and lots of options for the build: cast Vs brick dome, red house brick Vs refractory bricks, DIY materials for cast and insulation (DIY fireclay, vermiculate, pearlite etc.). Can be done cheap but there are also some good looking kits.

They are great for entertaining and mine takes around 3hrs to heat up, bit of effort for 1 or 2 pizzas but they do make great pizzas, roasts, bread etc.

Let me know if you would like some more information. There are some good online resources (fornobravo.com and others).

Cheers
Trav