Driveway Camera Issue

We've been without a functional driveway camera for over 2 mos. After repeated attempts to "fix" the problem, and Telus NOT coming through with a replacement camera for 6 weeks...they promised one and it never arrived. Now that it has ( my 10th call to Support) they want to charge $200 to install. The issue is a poor install at the outset... I subsequently cancelled the tech visit, and will attempt to do it myself. My issue is I need 65ft of cable. the camera came with only 5 ft of cable. Either that, or I try to repair the broken cable that Telus provided with our first camera. I noted that Amazon has extensions and wondering if I get 2 of them can they go together. They come in 33ft lengths. $20 as opposed to Telus's $200 sounds better to me. I will not renew our home security with Telus once it expires.