You make it, We break it
As has been many's experience, installers make money by getting a lot of jobs done in a day. More "challenging" installs cost them money in their mind. That's probably why he showed you his price list. Make sure when you call D* you're also very specific about every detail of the job, including where cables will run etc. so it's on the work order (if you haven't already done that with D*).