OP - You don't say how much is in IRA , or any account except the cash one, so here is a general thought: IF your the value of your IRA + 401K is high, then take the $$ from the IRA.
Most folks have too large IRA + 401K due to not being able to contribute to Roths long ago, and being sold the idea that it was the thing to do for tax savings immediately.
Reason being, when you start RMD's + SS you will be paying in the 22% tax bracket (probably), and when one of you is a survivor, you definitely will be in the 22% bracket.
Also , turn off re-investment for all your taxable holdings, so you can see the cash generated, and decide what to do with it anyways.
I would leave the tiny Roth alone, as this is not an unexpected large bill, and it's the only source of non-taxable cash you have.