What I like to know is this. You can built it but will they come? Where are they going to get them A's Fans?
The faders already has an established fan based from their former days in LA and LA is not too far away from Vegas. A's baseball can not walk in the same footprint as them faders.
Although the location is prime for fans to do a double wammy when in town. It is walking distance to the strip unlike the fader stadium that you will need to uber yourself across from that freeway.