Ronny,
I have 2 different POH for the MK II, the MK III should be similar, how ever they are too big to attach even in zip form. So ping me & I will email them to you.
I have a Barn find MK III that the main gear design was bad, it also had a leak in the fuel tank . So I'm in the process of finishing the fuel tank repair & will then replace the fuel soaked foam that has already been removed & reskin that area.
I'm looking for any information on the main gear instillation used on your plane as well as some other European ones with a similar main gear installation.
Bill