[SOLVED] Need some input on a live-stream system

[AzaronFlare]

A friend of mine has come to me to put together a system that will allow his church to stream services at 720p. They currently use an iPad pro and stream at 340. They also dont want to spend a great deal of money, so I was leaning toward a R5 2600 or similar, in terms of new parts, as a starting point.
I've not built a rig to stream from external cameras before, and it will also need to be able to accept at least 2 independant audio sources, and will act as the control center for the tech running the equipment, needing support for 2 monitors.
I have a solid grasp of building other types of machines, gaming and productivity, but I find myself second-guessing every decision I make on this one. Any suggestions or input?
They want to keep the budget as low as possible, around $700 would be nice, although there is some wiggle room.

 

[vapour]

720p is not that hard. What kind of camera is that?
To me, a 2400G or 3400G build is good enough. My take:

PCPartPicker Part List

CPU: AMD Ryzen 5 2400G 3.6 GHz Quad-Core Processor ($119.89 @ Amazon)
Motherboard: ASRock B450M-HDV R4.0 Micro ATX AM4 Motherboard ($59.99 @ Amazon)
Memory: OLOy 16 GB (2 x 8 GB) DDR4-2666 Memory ($49.99 @ Newegg)
Storage: ADATA Ultimate SU650 240 GB 2.5" Solid State Drive ($29.99 @ Newegg)
Case: Corsair Carbide Series 88R MicroATX Mid Tower Case ($21.85 @ Amazon)
Power Supply: Corsair CX (2017) 450 W 80+ Bronze Certified ATX Power Supply ($49.89 @ OutletPC)
Total: $331.60
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-08-20 11:38 EDT-0400

 

[AzaronFlare]

Thank you for your input, vapour! That's pretty similar to what I was thinking, but I wasn't really confident in the choices. I really appreciate it!