What a fascinating project!!
Did you actually get to examine the tunic?
The only source I have on the Thorsbjerg tunic, besides a few things on the internet, is a rather old text (1866) "Denmark in the Early Iron Age" by Conrad Engelhardt (I believe it is being offered again in reprint). Engelhardt describes the tunic (in brief): "A kirtle of woolen cloth, 34 1/2 inches long and 21 inches broad composed of two pieces, the seams being sewn with black woolen thread of three plies. The sleeves have separately woven borders of a very fine and elegant texture... The sleeves, moreover, are made of another, and I presume on account of their being exposed to wear, stronger sort of cloth, with a diamond pattern (the same as the stockings attached to the trousers)......"
I noticed in sources that the seams of the (one-piece??) sleeves are either interpreted as laying along the front of the sleeve (which you seem to have followed) and some say it is along the back. Without comparing to the sculptures, is it possible to tell if the sleeves would be long enough to cover the hand, or if the end of the sleeve (no cuff turned up) would fall at the right length? Are the sleeves fitted into the body of the tunic at an angle (like a modern coat) or if the tunic is laid out flat do they lay out like a T (perpendicular to the torso)???
It appears that you flat-felled the seams (at least those that can be seen in the photos.
"Cracked skull and cleft jaw,
Splintered spear, broken sword,
Dead prefect, dead tribune!
Death to the Romans!
Bright beams our blaze tonight;
Great the Cherusci clan;
Drink we a health to thee,
Hermann, our hero!" W. Beare