They are tenting my building for termites & I have 11 tanks of fish

I was just informed that on June 5th & 6th that the whole apartment
building is going to be tented for termites, and that I will have to
move all of my fish, all 11 aquariums full,...Two 30, one 20, and eight
10 gallon aquariums. And I don't know what the heck I'm going to do.
After talking to my brother yesterday about it, I condensed them all
down to one 30 gallon aquarium for most the adult fish [including most
of the female Bettas], and one ten gallon aquarium for all of the tiny
fry, one ten gallon tank for a pregnant Betta, and two 10 gallon tanks
for some other pregnant fish. Plus one gallon plastic storage containers
for each of my four male Bettas, which would take up far less space than
the 10 gallon tanks they were living in. But I don't know where I can
place all of them for at least two or three days. My brother first said
that he'd be coming over the next day and that he would come and move
one of my now empty 30 gallon tanks that we would then fill up there at
his house with treated water, and maybe one or two of the 10 gallon
tanks,...but he said that he didn't think that we could fit all of those
tanks in his small apartment for at least two or three days there. Well
some things have happened where he couldn't come the next day, and now I
have a much over- populated 30 gallon aquarium with 4 Whisper 20's
running, the 10 gallon with the pregnant Betta, the two 10 gal. with the
other pregnant fish, and the male Bettas, each still in their 10 gallon
tanks, awaiting to be moved to my brother's apartment, which he says
won't happen until Tuesday, May 30th. I know that all of this is very
stressful on my fish. I don't know whether I should move them all back
to their original tanks until Monday night, and then put them & I
through all of the stress of me having to hunt them down and remove them
with a net, or just leave them where they are until I put them in
containers or bags to move them to my brother's place. And also, can I
store them for the one to two hour trip to my brother's place in plastic
air-tight [food storage] containers, or should I use bags like the ones
that they use at pet stores? When fish are all jumbled together like
they are now, and will be even more so for two or three days, what
should I do and not do? Any help and or suggestions will be very much
appreciated.~Dean.