Thank you guys for your suggestions! I ended up picking up the Audio-Technica AT875R. I found this based on some suggestions on forums I came across during research as well as the creator of JuicedLink who was very helpful in his suggestions. Because I will sometimes only have the option of running phantom power from my mixer (running on a 9v. battery) I decided to go with this. I want to say it lasts about 4-5 hours using some rechargeable 9v batteries (but it could be more or less).
I heard A LOT of great thoughts about the NTG-3 so I might still consider buying it for other uses. This particular project was 4 days of driving on a bus so I was very limited in battery use. I had 4 9v. batteries I was constantly swapping and recharging nightly.
The audio sounded great in the headphones but I have not yet listened to it on the computer. It was in a noisy environment (a loud bus) but it sounded exceptionally good. I imagine the NTG-3 would be that much better, but again the phantom power was my biggest concern.
A real quick shout out for the JuicedLink RM333- it’s awesome!
Thank you again for taking the time to provide me some other options to consider, I really appreciate it!
-Stephen Pickering