I would suggest that you try some of the Scheduling Programs that are available. I use "Ship-it" from Albion Software.
http://www.albionsoftware.com/
It cost some money but the price of ~$180 you can get the scheduling software, a waybill system and an inventory program. They have crippled software that you can try for free for a period of time to see how the programs work or don't work for you. Others will chime in with thier favorite scheduling program.