These were ultra rare, then there was a flood in the European markets (I picked up several sets), now they seem to be scarce again.
On hand I have a field shirt (not the jacket like you have) and soon the very rare poncho. Both are available but I think the shirt is either a small or a medium. I've got one in hand but another is coming to me in a few months. Hats were never easy to find, so "best of luck to you" on that one