Why do they want to induce you? Do you think you need to be induced? You can say no if you don't think it's necessary.
Inductions decrease the chance of having a VBAC & increase the chance of rupture, but you can definitely have a successful VBAC even if you're induced.
Personally, though, I would refuse an induction for any reason unrelated to my or the baby's immediate health, which since they don't want to do it until Monday, sounds like that is definitely not the case. I really hope you reply and let us know what reason they've given for the induction, it'd be easier to give you more ideas.