Middle School Teacher looking for assistance with ATEM TVS!!!

OK I won't go into all the long drawn out specifics. To be short, I took on the challenge of starting a Film/TV production coarse at the Middle School (8th grade) level. The Film class has been going well the past 2 years and we are looking at getting our morning announcements going via the studio in the back of the room. Things were purchased for the program by someone that has no knowledge of the field and I am coming in to play catch up. See below of what equipment I salvaged to use and what I am thinking of getting. Please keep in mind I am on a smaller than needed budget and I am looking at products that would pull double duty for the studio production AND Film parts of this program.

1. Audio
a. Peavey V-8 Analogue audio mixer (L/R 1/4 inch jack Main Outputs)
b. 2x Audio Technica table top "wafer" microphones
c. Various wired/wireless handhelds

2. Video
a. I have a bunch of new Canon consumer HD Cameras with HDMI or Composite Output
b. I want to get - 2x Canon AX10 for use in the studio as well as for my film class.
c. Macbook pros for lower thirds and green screen backgrounds (I'm thinking digital studio)


3. Recording/Video Switching (THIS IS WHERE I REALLY NEED THE HELP)
a. I want to get the BMD ATEM TVS because of the simplicity and user interface via laptop screen
b. Behringer SRC2496 for analogue to AES/EBU ( I will need 1/4 inch to xlr to use the mixer I have)
c. Digital xlr to BMI impedance converter (110 to 75 I believe)
d. Obviously a digital AES/EBU xlr cable

I'm hoping this is what I would need to be able to get the audio in to the TVS so that I can record the compressed output into a laptop to then be uploaded to our school's media server as well as played back through the schools closed network TV system in the mornings.

Any help would be awesome! Thanks