This is a question best answered by Agilent. If the instruments share the same command sets, then you can use the same driver for both. All you have to do then is turn off the ID query. You can also contact Agilent to see if they have a LabVIEW driver for their instrument. If they do not, you may want to hire an Alliance Member to write an driver for you.
Alliance Member Directory
http://www.ni.com/alliance/alliance_member.htm