Thanks. I ended up getting pointed to the Locost USA forums last night and some threads there on build tables.
I think I'm gonna build a 4' x 10' workbench on locking wheels with a storage shelf underneath. Either with a MDF or 18mm ply worktop and cross-braced legs.
I already started a build diary at
http://davessr2roadrunnerbuild.wordpress.com/. I'll happily start a build thread to go with it too though
PS I'm going to edit that last post... As my "fuel removal technique" is a newbie illustration of most things you shouldn't do