I posted on this on another board very recently, will cut and paste my suggestions:

Some may disagree, but some good traveling independent providers will screen based only on work verification and personal info. Once you've seen them then you can use them - as long as the local doesn't require local refs only - I did run into that in Columbus OH once.

Locals don't like the traveling competition, but then they won't see guys w/o references - so where else can u get them? You could also email a couple of locals and tell them you are a newbie and willing to do whatever they need to feel secure u r okay - but u don't have any refs yet. It worked for me a couple times before I had any refs. I understand why most need them - with all the no-shows and creeps and LE out there, but some may take pity on a newbie if you are up-front and ask nicely!  Don't be surprised if they don't respond though as how do they know you aren't LE trying to bait them?

GL2U