Shipping a Stratos is a big deal. It is a monster, as you know. If you feel comfortable pulling a board out of it, why not just ask Klaus for a tested board and swap it out? Do you have a good quality soldering iron, such as a Hakko or Weller station? If not, ship the whole thing in, you are not up to the task. No matter, Klaus has proven himself to be a straight up guy, perhaps you need to talk to him about what you have and what can be done.