A million trials isn't really that many. There are lots of tasks where you can collect 1000 trials an hour. With a ten person subject panel where each person works 2 hours a day (10 hours a week) you could collect a million trials in 10 weeks. Assuming you are paying $15 an hour you can collect all the data for $1515 USD an hour you can collect all the data for 15,000 USD which is a small grant. To run a ten person panel you would ideally want 3 testing stations and an RA to run things.