Hi.  I am new to the world of cctv and need some help. I own a Medical Marijuana Dispensary and need a good system.  My tech I hired, up and quit in the middle of the job.  He left one of 6 sony had cam's inside and three Nuvico ir cams outside the place.  He had bought a Geovision 1480 card and a eight cam power supply. The wires are run for eight cams.  Nobody in my area knows about Geovision or wants to hook it up.  Should I remove all the stuff the first guy started and have another company do a full system?  
Thanks, 
Aaron