@ricred1 you have a nice system as I checked it out on the virtual system page. I really like the Live Vibe products!
Once you establish any kind of baseline relationship with a dealer most are willing to work with you. Colin is no exception. I imagine you have purchased items from a couple of the suppliers you listed and have that baseline or better relationship in place. Based on your system upgrades over the last few years and sticking with brands like Rowland and Antipods that may be a reasonable conclusion.
It is certainly wise to have a card on file as back up before shipping high end gear to folks with no prior history with a seller. Seems more than reasonable. Would you agree? Far too risky not to do this in my estimation.
Colin is wonderful to work with and I suggest you start that baseline relationship if interested in some of the great gear he imports and sells. Just a suggestion as he is passionate about great sound and finds manufacturers that share this passion.