I am planning on purchasing a SeeSnake System to add to my inspections business. I plan on primarily doing home sewer inspections and need to know if the SeeSnake Compact (2 to 12inch) or the Mini-System (1-1/4 to 6inch)is the way I should go? The individual that turned me on to the SeeSnake System indicated that they had 150ft of cable, but I don't see where you can purchase the Compact system w/that length of cable. Hopefully I'll be able to drum up some commercial inspections as well, so should I stick with the Compact System? How does one go about getting the Compact System w/150 or 200ft of cable, instead of 100ft, which is standard?