If you want to go down the gluten free pass be careful if you intend to blend your own.
Here in Australia you must ensure that there is no contamination of flour to the gluten free product. This means everything in the shop must be free of flour and flour dust, all utensils, pans etc must not have been used for flour products etc. I would imagine it is the same worldwide.
You can buy frozen or vacum packed gluten free bases that have been made under the correct conditions. All you need to do is thaw / unwrap and use making sure the pan if you are using one is a flourless virg1n (censor won’t allow this innocent word) one.
It sounds like the cost is high there as it is here. A 12" gluten free base is around $3.25 wholesale so you would have to add about $4.50 extra to your normal price for a gluten free pizza. Then again if someone is restricted on what they can eat due to be seliac then a few extra bucks won’t matter to them for their treat.
Dave