@ Andrew, thanks for your comments and your feedback on the ticket price.

I think I would probably need to sell 30k to break even. I know that sounds like a lot but in theory offers better odds than most lotteries.

I saw that the charity RSL Art Union in Queensland do house raffles all year round from $5 a ticket. But they sell something like 1.3m tickets. Obviously they are very established and the trust angle is not an issue.

I see your point about this being an unusual competition and the need to probably have a good marketing budget to make this work, plus some good partners.

@ mattnz thanks I'll take a look at the NZ one you mention, sounds like a success!