Tony, if I ever have access to one, I'll be sure to examine every part of it and take plenty of photos!
As for the Sucharski's tunic, I also noticed the collar tabs to be out of place. The story behind the uniform is Marian Balcerzaka an AK soldier who was placed in over 3 concentration camps met Sucharski in LŁbeck, where Polish soldiers were being grouped. There they received new uniforms. In a pile of junk and ruined things he noticed the Majors uniform and stuffed it into his suitcase and brought it him. He donated it to Gdansk WW2 Museum in 1986.
Heres a photo of Sucharski (seated in the middle of the bottom row with a VM) while in a POW camp. I'm not sure if this is his field or dress uniform in the photo but no sign of collar tabs.
My guess is these were added on post-war or they are original to the uniform, but re-sewn incorrectly post-war as the stiching might of gotten un-done.