Hi Paul,
Sorry I didn't get a chance to reply to your last post. I would take them out asap and place them in an incubator. 87 degrees would hatch all female spotteds. As for finding the eggs just watch her every night aroung the time the lights go out. I would place a one inch layer of top soil over the sand and when she digs she will dig up the sand and you will see where she laid.
Tom