Such is the life...except when scheduling qualifiers. The USFA Operations Manual, Ch.8, Sec.4A says:
Originally Posted by Rick Shellhouse
(2)...Divisions and Sections must make every reasonable effort to ensure that competition schedules permit competitors to qualify for all competitions for which they are eligible.
(3) All qualifying competitions should be scheduled with regard to date, time, and location in such a manner as to prevent undue hardship to members wishing to attend such competitions....
When scheduling qualifiers divisions have to take into account the possibility that fencers may want to qualify in more than one weapon and the division must make every reasonable effort to schedule the events to make that a possibility. The description of how you would run the events does not allow for that.
Also, in running them as you propose, you will find that there are parents who will have conflicts caused by having two or more children fencing simultaneously in two or more venues and that may present those parents with an undue hardship. There are also safety issues in setting up competitions in such a way that may cause a parent to leave a child unattended at one venue in order to go to a child at another venue.
Splitting the venues as you suggest also requires that you hire duplicate or triplicate tournament staff including armorers and medical personnel for each of the venues.
And as far as the coaches go, you and others were complaining in the thread that this thread was spun off from that the Section's rules separated you by 20 or 30 feet from the pool of the fencer you were coaching. Imagine the complaints when the rules separate the coach from his fencer by 20-30 miles.
Lastly, as to refs being provided by the venue from the pool of refs that the venue normally uses for their own events, that would at the very least give rise to the appearance of a conflict of interest and would leave the division with officials that may not meet the division's expectations or the requirements imposed on the division by the Operations Manual Ch.8, Sec.4A(4).