Hi
Looking at his swords, I would like to say that they look good. However they are often uncomplete. Look for instance at:
This unofficial Hessian sword (the wonderful blue part in the center of the blade is missing):
http://cgi.ebay.com/GERMAN-HESSEN-CAVALRY-SWORD-M-89_W0QQitemZ6621714701QQcategoryZ13965QQrdZ1QQcmdZViewItem
This 1822 Off sword (the handle is uncomplete; all brass part should be gilded (or at least keep some golden part), ....like should be gilded all OFF wappen for pickelhaubes!):
http://cgi.ebay.com/FRENCH-CAVALRY-OFFICER-SWORD-MODEL-1822_W0QQitemZ6623193277QQcategoryZ4070QQrdZ1QQcmdZViewItem
The seller is certainly very correct and a great collector, because he has scarce items. Nevertheless, all item should be checked to be sure.
Then, like dealing with pickelhaubes, be cautious with all militaria items!
Eric