500 hundred tickets would be more fair, both from the issue of your profit, and the chances of winning. $75 is alot for 0.05% chance of winning. I doubt you will get 2000 sold.
Most model home raffles sell tickets for $100 or more, and they sell *way* more than 2000 tickets...
This thing is only worth $10,000 when you consider the date it was sold, but if you had it in your hands today, you could buy a house with what it will mine.