Bob Jackson (Vigorelli, etc)

exactly. the guy was selling it here recently but I want steel forks with mine.

thinking about paying the extra £180 for 853 front end and 725 rear triangle although im sure I wont notice the difference so perhaps I should just stick with 631....

I think you'll definitely notice the difference the 725 rear end brings. The difference between 725 and 853 main triangles, maybe less so, but for £60 over the 725 upgrade I'd say it's worth it on a road frame.

My 631 Bob = a bit lumpy and flexy
My 853 + 725 Feather = buttery smooth and stiff