The background/credit report agency (online) I use charges $26 for statewide reports and $49 for nationwide reports. So if I were in your shoes, I'd "accept" the report they handed me for evaluation and see if it matches the score generated by my background-check company. Whatever the difference between those two scores will tell you the most about that prospective tenant. Also, the financial report will tell you how many collections, defaulted accounts, and bankruptcies for the last 2 years, so those numbers usually reflect what's going on with their credit score. If the applicant has zero collections or defaulted accounts in the last 2 years, then there's no reason they wouldn't have a fairly decent score. good luck!
p.s. On my application they'll need to sign off specifically for their authorization of those checks, so this is something you may need to set up for in the future.