Oh yes, I forgot about the XR3s I had in 1981 - better left that way I think.
I bought the RS2000 when it was 6 months old from a chap who had another one in storage and unused. At the time Ford was trying to shift those RS1800 things, but I didn't want anything to do with alloy heads
I could have picked up a new RS1800 for the same money I paid for the RS2000.