Hi!
If you do think that the candidate may fit the bill. Don't give up just yet.
Ask him as many questions you want, technical as well as HR.
Once you are satisfied with his/her technical and HR skills you are free to pursue something more innovative like thwe one mentioned below.
If you are concerned about the presentability/body language/demeanour of the person one can arrange for Net telephony, You can view the person on the web camera.
I hope that you do like this solution.
Regards,
Shyamali