Well she was a trials platform upgraded and returned to service so maybe even 6"/47 DP Mk16 forward or maybe the UK Mk26, or a multiple 5" set up like on De Grasse but with US Mk42s. It will come down to what I have in the parts bin if I happen to acquire a 1/700 Prinz Eugen at some point.
Actually giving it some thought why not Talos instead of or in addition to Terrier, in a double ended set up. A pair of Mk 42 on the foredeck forward of the missile launcher and another aft with Tartar mounted P&S midships and maybe a helicopter deck and hanger worked into the aft superstructure. I would have liked to have retained the 8" but realistically these would have been useless given the time frame and the lack of maintenance. Realistically it would have to be an in production type to replace them so 6" DP max, maybe the postulated US/UK 5"/70 in twin or single mounts, or most likely the Mk42. Secondary would be US or UK 3"/70, US 3"/50 or Euro 57mm with the out side chance of French 100mm. This was a big ship so lots of room for post war systems while still freeing up space by deleting the original separate secondary and AA armament.
I like the idea of modernising war built ships to get post war tech to sea while the ideal new designs were being perfected. Quite a few of my conceptual wiffs are along these lines.