I think you wanna look at options 1 and 4.
2 is unreliable at best, and 3 will be expensive and have a ton of latency.
If you can get a duplex dark fibre between the 2 sites, then you are laughing. Embed your audio in an SDI stream with the video, convert that to singlemode fibre, and off you go.
If you can get lit IP fibre, you can certainly make this work too, although you'll almost certainly have to compress the video. The advantage of dark fibre is that this can all be transmitted uncompressed.
Option 4 would also work well, and there are lots of commercial solutions for transmitting SDI w/ embedded audio over microwaves