I set my customers up with Zebra printers and Dymo printers for the size of labels.
I've always used the Zebra LP 2844 for printing the 4" plus labels..
and for inventory part number shelf labels, i use the Dymo Twin Turbo, and use the 30321 address labels.
i have Crystal reports setup to print the info necessary.
i'm sure you've contacted a Zebra reseller on the labels, they might have something in stock for the LP
http://www.abrfid.com/.