Equity crowdfunding is a bad fit for funding an MVP.
One of the few advantages of equity crowdfunding (and they are few) is that the funding process doubles as a marketing effort. You don't want to market your MVP. You want to market your end product. You also don't want to do your marketing until you have a product that you can deliver, that you know has exactly the features your customers want (as determined by MVP testing), and you know your ideal pitch (also determined by MVP testing), within a few months that is not a beta, and is not handicapped.
An MVP can hurt you unless it is billed as a beta (or similar) product. Many startups will in fact completely change all their branding when they build the end product. You want to get as many of those pivots out of the way before you scale things up and start dedicating resources to marketing (wherein crowdfunding might be included).
Equity crowdfunding is not easy money. It has to be incredibly viral to work, and those to whom you pitch need to feel a deep connection not just with the product but with you, with a high degree of confidence that you will deliver. In fact their connection with you has to be far greater than with standard crowdfunding, because they're getting nothing out of it except a piece of you. They're not funding your product or service ... they're funding your success, and if you loose they loose, even if you deliver a great product or service.
Of course that goes for any investor ... the point is that it is much easier to make that close and personal connection when pitching to one or a small group of investors. This is why I think that only once you are able to make that connection in a crowd setting will it be a success. That may be the case with you, or not, I don't know ... but it is a challenge to make a close and personal connection with people who can't shake your hand and talk to you in person.