BBQ sounds good, the lamb roast may take up too much prep and cooking time. What sort of BBQ pit is it? Gas? Woodfire? Electric?
Simon, can you draw up like a timetable as a guide for us as it will make it easier for those of us driving up to plan out trip? My wife & 2 kids will be coming along for the meet, so perhaps to make it easier to prep, cook and clean up, a sausage sizzle might be the best option, in that way even the young kids(like my 3yo) can tuck in without the need of a kid's menu.
Can I get a head count so I know just how much food to purchase? I've got 3 mouths total in my brood.