short update from the guy without a life....
I bought a pair of b44 straps, and found a pair of standoffs in my 12th scale parts bin, and came up with this solution:
I realise it is not optimal, with two straps vs one, but at least it clears the body.
Maybe I will draw up a one-piece cf board and have fibre-lyte make a couple, but then I would place the posts further back, to free up more real estate for the electronics. As long as I am running the low-profile servo, I am fine, though.