Hi all, been a lurker for a while as I've been taking my time to look over as many topics on here as I can before deciding to make my purchase and I'm happy to say I'm finally picking up my Alphard on Saturday!
I made the call to my current insurers (Hastings Direct) to see what they could do, currently have a 2019 Ford Kuga Titanium 1.5tdi paying £462 this year, it cost me an extra £82 to change over to the the 2012 Alphard 3.5 V6.
£542 seemed pretty reasonable to me, although I should point out that I am in South Wales and based on Chris' post above Wales is the third cheapest region in the UK. 35 M 9 years NCD doing around 9000miles a year and parked over night on drive.