An update. He didn't make the trip in the end as he was falling asleep at the wheel so he turned round and came home after about 30 miles. He had to be up there by 12.30pm so is going to try again next weekend with a little more preparation (ie more sleep!).
Ste, I daren't ask if he's switched the heater on. I'm not allowed to!! He caught me with my nose in his Haynes manual the other day ........ anyone would have thought I was going through his e-mails or his internet history or something

It probably is reliable but he's only had it a few weeks and he usually only buys lemons!
Rust? Not on this one - it appears to be in really rather good condition.