Click below and find a lot more legally free HDRI's!
And here they are:
By using my own created download program, and action file in photoshop, I can now convert every google streetview spherical panorama to a fake HDR. Below I have included three I made, called "Road in vermont", "Las Vegas, near the M&M shop" and "Time Square"
I hope this will help you to find a more suitable or fitting HDR for your models!