Some maps do have air starts...saves lots of time if there are targets close by. If not, climb to target and enjoy the smack talk along the way.
Targets could be Strat factories with instant rebuild, pilots would want to get a bit a separation from each other.
Clouds and or wind layers could be implemented.
Scoring could be based on number of buildings killed per the logs, ties broken by number of buildings damaged.
Yup, it is doable, but you would have to find at least one CM willing to take the time to put it together and host it.
The Training arena map could be used, as well, I believe. Lots of places for bombers on that terrain, and I am pretty sure a CM can load it up in the SEA's
Does sound interesting, but I would not anticipate huge turnouts.