Mate, just go with AAMI. No restrictions on mods as long as they are legal, cheapest as well. I get roadside assist as well, windscreen cover and just get a new screen every year no excess. Every year they bump up the premium but I just make a ......
Once I would have said AAMI as this was the company that had 10k worth of policies for cars, houses and campers. but as we always rang for a discount on the policies they finally told me no. So moved over to Affinity Brokers for 2 years and then to Club4x4 in November last year. Unfortunately I had a claim in the second week of the Club4x4 policy. This was the easiest claim I have ever had. One quote from my preferred replier and one one phone call, thats it, car repaired and good as new. They cover camping gear, the fridge that is in the car ($1400) at no extra cost, They are not the cheapest but they are the best in my opinion if you need them.
Son is with Shannons and gets discount for CAMS license and club and amount of policies, never has had a claim yet so cannot comment of that side.