Depends on your needs, current business phase, and time horizon. If you're looking to raise capital and need someone to develop/maintain a complex financial model of your business and other support functions for your capital raise process, probably best to find someone with that core competency and prior experience. By the looks of your website, it appears as though you're at the very early stages of business--incubating an idea, attracting supporters, and probably in need of relatively large sums of money to develop infrastructure for your transportation service/facilities. Unless you're building a Fintech type business, you probably don't need a full time CFO at this stage in your business so I recommend that you don't offer equity and salary to anyone just yet.
Your "CFO" most likely shouldn't also be charging you CFO-level hourly rates for performing lower level tasks like setting up a chart of accounts and posting basic journal entries to record your historical expenses--use a lower cost resource for those activities. I wrote a blog post about this recently: http://www.supportingstrategies.com/blog/topic/santa-monica
Please feel free to reach out to me any time to discuss further--I'm happy to be a resource for you on this.