Only just got back to this thread; been busy! Thanks for info, and
Send Clowns, thanks for offer of place to stay.
But I may not need it! I'm getting more work, I have a student who wants to do the whole course with me, and I only need another 45 or so hours before next April to get to the magic 100 hours (OK, fulltime FIs, laugh all you want!). I have to do a test anyway, as it's my first revalidation, but I thought I might need to do both, as 20 minute TLs take a long time to add up to 100 hours.
All I need now is good weather over winter...and maybe another student or two.