Numbering coupons in a book all coupons in book ha each book of coupons will have a different number

I'd advise setting it up as a data merge. Your data source being a 500 row, single column. Use a sum=+1 to generate the 1001-1500. (I despise numbering that does not start with "1".)

Data merge document, export limit range 1 to create 500 unique files. That's the simple "fat" approach. 

Assuming this is going to be digitally produced you might want to utilize Fiery's Create Print Master and Use Print Master feature. Fiery can merge the static and dynamic elements. The 500 files route might choke your RIP/Fiery.