You can hire a professional sound guy (to work on an indi film) for around $150/day. They might not be the most experienced mixers but, they’re are a lot of people out there looking for work; and they should come with enough gear and experience to get you the quality you want.
That said: Anything by Sound Devices is tops; the 302 is perfect. If you can’t afford new, look for used. As far as the recorders, I haven’t used these. Before you make a purchase, seriously look at used gear, ether through places like Trew Audio, Location Sound, Topham and others or on Ebay.
Dave J