I'll assume you sincerely want to introduce others to the enjoyment and satisfaction of genealogy, seeking old graves etc. and not just use them to do your research for you, so I'll be nice. I think a better way would be to create your own web site and post your proposal there and be open about what you are trying to do. I think it is a great idea to identify and precisely document all of the old graveyards/graves in ANY area and to solicit others help is perfectly fine. In fact I would be happy to contribute when the opportunity arises. However, my reaction to seeing your cache page made me feel like you were trying to use this medium and us geocachers for your personal gain and that rubs me the wrong way. Offering cash prizes and setting cutoff dates as if you have a thesis or dissertation deadline doesn't help. Keep your money, build a page, and they will come.