Is it normal for them to charge $8 shipping per item? So I have like a nut, a nut cover and some wires they want $24 shipping. Is it because of the way it comes from the different warehouses?

They usually reply to you with a bulk shipping price. Is this numbers from their online catalogue or did they respond to your inquiry with those prices? 

It can come from different warehouses though so thats definitely a reason. 

It includes there handling expenses of organising the parts. Cheaper than twosrus at $60 minimum fee.
Whatever I have priced Amayama has always been best value. If you say it's a nut, go to a bolt shop like Capalaba bolt King. If you need wire and other parts, there are so many parted cars in Brisbane you should be able to get the parts from another car.

They responded with this quote. They split up an order into two, one from Australia and one from UAE. Each part cost $8 to pick. Are they packed by virgins? I'll just pay retail from Toyota, it'll be cheaper for smaller parts.