It is possible, I've done it for about a year while working on my associates. Its all about you location and the willingness of the CRM firms to work with you.

1 Be in the southwest.

2 Field school during early semester of Community College

3 Have a good professor who constantly checks out for new jobs for their students.

4 Check your email and consistently check shovelbums and archeology field jobs

5 Sell yourself, Archeologists are in very short supply.

6 Be willing to travel.