If you want the actual portfolio, you can order them from Helm at www.helminc.com or 1-800-782-4956 (HELM). You can download an owner's manual from www.genuineservice.com for free as a .pdf file.
Any of the above can be found on eBay at a more reasonable price than Helm, Inc. Granted, Helm manuals are new/eBay manuals are usually pre-read ........