i dont think it would work as a two day event , simply because of the amount of visitors on the day , tring to accomodate that many people in camping venues is unrealistic , and you cant openly camp on silverstone ,
for me the ideas simple , arrive eairly , set yourself a route and stick to it ,
se what you wan to see fist and then anything else is a bonus ,
i thik i saw bout 85 % of what i wanted to on sunday granted could of chatted all day to some folk , we didnt leave till around 4:30- 5 pm ,
its a great show , and the revenue it makes in one day means they aint going to shell out for more days
beef