As for the names - it is a pity that they didn't use the same names as the previous Daring Class - Daring, Dainty, Decoy, Defender, Delight, Diamond, Duchess, Diana. Previously Duncan was a Type 14 Frigate, Dragon a Cruiser and Dauntless was the WRNS training establishment. I served in the previous Daring which required nearly twice the number of men (men only in those days) to run it and was nowhere near as capable.
I heard a radio commentator this morning mention a sum of a billion pounds. Wasn't sure then if this was for one or all six of them but this click here does mention it pays for just one.
Expect costs to rise a little more when the main gun is upgraded and probable other mods done after sea tests and trials. Could get something back later on if they sell off the ageing Type 42s. Problem is who will be able to find the money to buy them these days? TC.