Help with a family issue

[Charlie ny]

My wife will NOT ride in our soon to be running '32 pickup. She has discovered
she will be sitting over the gas tank. I've been advised that as long as I do not use a vented cap there is really no issue......she's not buying that. Can
the passenger car tank be installed in the truck or what might be the best approach....and no after 58 years we are joined at the hip.
Many thanks,
Charlie ny