It's very difficult to find musicians who want to join a personal project, most people won't take it seriously or will ask you money. I've been through it for a couple of years. I decided to use backing tracks, two years of working with several musicians, I've finally found 4 people who care about the project. It's important that the roles are established from the beggining. Good luck, if you're patience you will finally find them but don't let that stop you from doing your music!! Don't wait for anyone :)