Welcome to TFL, armyrto - - -
A Google search may turn up some interesting things, but I don't know of any collector interest in the Universal carbines. Lots about the military versions, though.
Late Edit: After I had written and posted this whole reply, I realized your question was posted in RESEARCH forum. The rest of my reply, below, was more suitable for one in Art of the Rifle or The Hunt forums. But, having written it, I'm gonna leave it here.
MODERATOR: You won't hurt my feelings if you edit/clip/delete this stuff. Sorry 'bout that. JPG
You don't mention your intended use for either firearm. Suggest you look up the thread,
http://www.thefiringline.com/forums...=79705&highlight=.30+carbine+for+deer+hunting
from a couple of months ago. I believe the consensus is that the .30 US Carbine round is unsuitable for deer and hog hunting. Not really accurate enough for classic varmint hunting. Pretty good for home defense, if you accept the parameters--One bullet per trigger pull, possible overpenetration.
As to the Winchester 94 .30-30--
By 1972, they had cured many of the problems with the post-1964 Winchester products, particularly the ‘94. It is certainly NOT the collector's piece the older guns were, but it is a good, serviceable hunting arm, particularly if rigged out with a good receiver peep sight. It has plenty of power and a decent enough trajectory for deer well beyond 100 yards--How much beyond is up to your ability and amount of practice. Unless you are in thick cover with no chance of 100 yard plus shots, suggest you stick with the 150 gr. Soft point loads.
If you want to use the arm for hunting, I believe you'd be much better off with the .30-30.
One man's opinion. Whatever you decide, good luck, and
Best regards.
Johnny