Aside from the typo cien
60
.
I think all your options would be understood, but to me they don't necessarily sound all that natural.
I'd say:
* Quiero saldar la cuenta.
* Quero pagar lo que falta.
I think you can use "balance" as well, but I think only when you're talking about the total amount, not the difference or what is left to pay. But I could be wrong on that.