Cheers for the contact details, I'll reply direct soon - I'm in and out a lot today, one of the perils of self-employment is always being on call. But it does mean I get to work on the boat during the quiet spells :)
Thanks for the kevlar tip too, I've been careful with the sanding so far! More tips most welcome. Fortunately (?!) the red paint job is very thick so easy to see the depth I am sanding to. I'm not taking it back to being bare, just to take out the thick brush strokes and even it out prior to repainting a slightly more tasteful white decking and blue hull.
I've had to fill a few dings, especially a 4cm chunk out of the spinnaker chute lip, but overall it looks pretty sound, just a bit rough around the edges.