i think the time for you keystroke lottery idea is over. Computers are more and more powerful and making intelligent decisions now. probably can already read lots of handwriting and will get better. Computerized translations also getting better and better. So why use all those people by turning typing into a lottery?  It can only be transitional. Also, mechanical turk (amazon)  already does a lot of typing. That will only get bigger. I'm not saying you lotteries can't work, just they will probably becoming uneconomical in the face of computers faster and cheaper.