Wow you have a Kirby vacume and no AC? Those vacumes cost a small fortune.
You must not live in Florida like me :-).. Living here without ac is very
hot during the summer.

Those vacumes can be had used for much less... it's no big deal. But I
am in Washington. I don't know anyone with AC. There are only a few
days in the summer where it would be nice, but one could just install
an attic fan and be pretty much happy.