Thanks for posting and how exciting that you are going to do research in Kleinsteinach! I so wish I could get over there to see where my ancestors were from and try to find out more about the Schloss family. I would be surprised if there was not a connection between our families and will give some additional info that I have in case you come across anything. Thanks for your offer to let me know if there is a link.
My GGG Grandfather is Seligman Schloss born April 30, 1830 in Kleinsteinach. He came to America in April of 1853 and ended up in Detroit. He had one brother named Emanuel Schloss born Feb 1823 in Kleinsteinach who may have emigrated earlier than he.
Their father's name was Abraham Schloss (possibly Abraham David Schloss) born approx. 1790 in Kleinsteinach. Some info points to the mother being Mirjam (or Myriam) Straus though I have other info that states that her maiden name is Marion.
That is about all that I have but if run across anything and are willing to share, I would be very grateful and, even if not, I would love to hear about your trip and see any photos you would be willing to share.
Thanks again for getting in touch and have a safe and wonderful trip!
My email address that I use for family tree stuff is firstname.lastname@example.org
if you want to contact me directly and please let me know if there is anything I can do to help aid you in your search.