1. Why not jump into something yourself rather than trying to form something with a bunch of random strangers? Honest question. This resembles a lot like a local startup weekend (not saying there is such an option wherever you live).

2. MVP in 14 days in some cases is unrealistic without even knowing what it is you're looking to do. Some ideas can be done in a day. Some require several weeks or months to get a few features done for a basic MVP. It all depends on the idea.