I am trying to post a job that I want 5 people to all do (and be paid individually).
Do I need to post 5 identical jobs, or 1 job with 5 freelancers desired (and if the latter, how to I set a fixed budget to pay each equally?)
You can post 1 job, and note that you need 5 freelancers for the job post. You can set a fixed-price rate, and let your freelancers know that this is the set rate for the job post which will be paid to each freelancer (and not divided among them).
You can post one job with a fixed budget (please make sure you put 5 freelancers needed so that the freelancers will still apply for your job post even after you hire one guy/girl). Once the freelancers start sending the proposals they will be able to see your budget and will bid accordingly. Finally you can go through all the proposals and select 5 freelancers and award the jobs individually.
Using an hourly contract for something like this is a great way to compare the quality of the many people you hire.
I have hired five people for the same job.
I understand the difference in value when it costs $300 for one person to accomplish the task, $200 for three of them to accomplish the task, and $100 for the fifth person to do it.