Re:
Quick update. Everything has now arrived, hopefully no more hiccups but who knows.
Should get the headset fitted on Tuesday. Went with an IRD Technoglide in the end, didn't fancy paying £130 for a CK or Cane Creek. Only read good reader reviews of it and it's nicely finished, seems to be a good mid price option, cost just under £50.
Flipping over which wheels to use. They both look good but bought a NOS non-suspension WI hub yesterday so if I can find another Araya 395 Team rim we'll use WI on the Merlin as originally planned.