I called an electrician listed on Tesla's Web site to install a HPWC in my garage. It's a simple install - the HPWC will be mounted right next to my electrical panel. It'll be installed on a 60amp circuit for 48amp output. His quote was $600 (includes all materials, permits, etc. etc.). Is this a fair deal? I like that this company has installed dozens of HPWCs so they likely have it down to a science. Any feedback would be appreciated.