Thanks for the advice and stem offers all.
Thankfully, the seller is a nice guy and is sending over the Ringle stem and Controltech post, so that part is taken care of.
Unfortunately the rear spacing is 135 which I guess will limit me a little?
I found some sets of 26” canti forks with 1” steerer online. Sunlite, Dimension or Kona seem to be a few of the options. Guess it’s too much to be asking for a carbon job? I know Pace is an option, but they seem rare and/or a bit scruffy!