The thing I’d urge you to consider is the amount of cable technical support you may need. Do you know enough about regulatory compliance for instance, or CPR if you’re operating within Europe; can you pick up the phone and speak to experts on an ad-hoc basis as the need arises? How much easier would it be to have access to experts in their field when you have questions about suitability, the installation environment, and electrical characteristics. There’s always a degree of urgency in finding answers so a technical hotline for just those moments can prove invaluable......