I'm a Junior leader, so maybe I can offer some general advice, but it won't be Daisy specific advice.
If you do meetings right after school, then your meeting might be percieved as a babysitting service.
Unless some parent is on bedrest, or is caring for a critically ill child, spouse or parent, they should not be allowed to not help out.
Different things to get their help on are: maybe have a different parent handle each of the petals, from the planning to the meetings. If you end up doing it all - you'll burn out much faster. Definitely have each parent responsible for a snack at 1 meeting. Have parents help out with the bridging to Brownies activities. Just because you are the one with the training, doesn't mean you should be stuck with all the work. Yes, you do have to be at the meetings, but you can assist a parent running a specific activity.
Depending on how many girls you have, if you need 3 or 4 parents to be at a meeting (I don't recall the safety-wise ratios for Daisy's). Have each parent sign up for a night to volunteer to just be there.
Encourage the dad's to help out. All parents have something to offer. Dad's have a way different perspecitve on things.
Schedule enough meetings so that the girls don't lose interest, and don't schedule too many that you drive yourself crazy.
There is a lot of information out on the internet. Don't try to reinvent the wheel. (There are some great sights for Jr. badges - I just wasn't a leader then.) Maybe find a Brownie leader from your school that was a daisy leader last year. If you run into her at school, try to get some info from her. What worked for her, what didn't etc.
As far as supplies, talk to your service unit manager, or your school coordinator. See if there are any older troops that are disbanding, and by any chance if they have some leftover supplies they wouldn't mind donating to your new troop. For example - eventhough our troop is not disbanding yet, we have a blundt of blunt-end scissors, crayons, and other craft-related supplies that we will never use again. I am going to see if I can hook up with the Daisy leader and donate them. It gets them out of my house, and allows them not to have to purchase them.
The girls can be a lot of fun. Make them clean up after themselves - teach them this early!
Unfortunately, from the leader perspective, GS is all about the rules and the paperwork. If you follow the rules, you'll be in great shape! And, while I may mock the rules from time-to-time, I will follow them. I think my worst moment was one of the parents (who I had know for 4 years at this point) questioned my ability to make sure that I had 1 seatbelt for each girl for a trip we were taking. DUH! My husband and I had been looking into an umbrella liability policy about then, and I made darn sure it was in place before we went on the outing.
I don't mind being the leader, but it is way on my schedule, as over the last year, I was working 50-60 hours a week.
Good Luck