I'm really not sure that anything that THINS the uterus is a good idea LMN
especially with someone that's had a previous CS.
Does your unit have a VBAC clinic? The one I work at does and women go along see specialist midwives and a consultant and devise a plan, it really does depend on why you and your cs before, but your chances of a VBAC are usually quite high. Some units are quite cautious re mode of induction and I think this is fair. Here rupturing membranes is common, and if (and I mean if) syntocinon has been agreed then it is used with caution. I do disagree with statement about see a more experienced midwife as sometimes the older more experienced midwives can be a little set in their ways about things
and VBAC is something we focus on a lot these days and the more newly qualified midwives appear to be more confident in dealing with ladies having a VBAC ie: as they are up to date on current research so for example continuous monitoring can lead to interventions etc. I've only been qualified a few years and am quite interested in VBAC and find it interesting on a personal and professional level and it's brilliant looking after someone who gets a successful VBAC.
I don't see harm in having a cannula popped in but it's your choice, I'd be happy with a woman having a VBAC eating and drinking, after all you'll need the energy and advising someone not to eat is setting her up to have no energy when she really needs it IMO.
Try and keep upright and mobile, and if you don't want continuous monitoring go for intermittent auscultation, with maybe a 15 min trace every hour if they want you to compromise (can imagine some units aren't as relaxed as others). If you have access to a pool try this for pain relief. Some units have telemetry where you can be on the moniter but not hooked up to it and can use the water. It's a good compromise too.
You could ask your comm mw for a membrane sweep when your due (depending on when they offer them) and here we do 2, 48 hours apart and they can be useful for women who have laboured before especially.
I've had lots of women use raspberry leaf tea as others have mentioned. Never heard the wheat and sugar thing.
However, ultimately your body will go into labour when it's ready 
Fingers crossed for you.