Lee,
Thank you for your question. The Illinois Dept. of Natural Resources does purchase tree seed for their nurseries. Please contact Dave Horvath at:
Mason State Nursery 17855 N. Co. Rd. 2400 E. Topeka, IL 61567 309/535-2185
Regarding tree seed collection devices, check out this website http://www.baganut.com/
Prices for individual species varies year to year, you may want to try and contact several people for current seed prices from the following website http://www.directseeding.org/