Mr. Bowman,
Thanks for your service, sir. One question I had is whether she had an OD nose or a black anti-glare nose. Both could be found in country at that time. Also, were the horizontal stabs orange as in the photos below? Perhaps you have already seen these, but here are a few birds from the 69-70 time frame. They are all 101st Airborne, but I'm not sure of the exact Aviation battalion. I'm sure I got these from the 101st web site, but honestly I can't remember. They were taken by John Collier. You can see these birds look pretty new. Also note two pics show OD noses and one black. Furthermore, one seems to show a new tailboom.
Ray
Note the OD nose and black trim around the chin bubble on this bird.
I assume this tail boom is very new since it still doesn't have a Army stencil yet. However, she must have some hours on that tailboom already since it is stained with exhaust. of course the staining seems to only be on the tail rotor drive shaft cover so perhaps that part was retained from the original tailboom. Anyway, exhaust staining is another little detail that could be added if the goal is a war weary bird.
j
And here's a straight OD bird: