Came here to say this. My last job a few years back was at PledgeMusic (@ttf and @rob.orch yep that’s what MV used) and I think an important thing is having a good idea of your overall costs/budget going into it so you know more or less the amount you need to make the project you’re crowdfunding happen, and part of that is making sure the incentives you offer aren’t going to cost you much (or even better, anything) to produce and deliver. So experiential things or non-physical items are much better to offer as you don’t need to increase your target to cater for those things as well.
We always took the approach that the minimum ‘pledge’ should still get you something (for us it was a digital download) so your backers are actually buying a product and getting something in return rather than just donating, so maybe a ticket to the festival could be that? Don’t know what you were thinking of charging for that.
Do you know where or how you’ll be promoting the crowdfunding campaign and do you have an idea of what sort of support you can get? For all the advice on how to run a good campaign and what to do, really it just boiled down to what kind of audience the group/person in question could get the campaign out to, what sort of content they could use to promote it, and how receptive their audience would be to it.
Final bit of advice is don’t say anything will be released on September 31st