Hi,
In 2001, I contacted Helm,Inc. about a manual for our cars.They referred me to a third party, due to the age of the car. I bought what this individual was offering for $200 or so, and recieved about 30 pounds of loose pages that included everything on every car Buick sold in 1987.I bought a couple of the biggest binders I could find,and made a huge manual set for our cars.I still have 15 pounds of pages I'll never use, pretty hard to find anyone else who needs it either.
Be careful of what you buy. This individual took the opportunity to dump all that extra stuff on me at an inflated price.,without explaining the format it would arrive in.
Today, I use computer diagnostic info,and I would advise others to buy the online access to Alldata for their specific car. I think it runs about $30 for a year's access. You can't beat that deal, considering what they charge we shopowners per month for full access to their stuff.