I had a Redarc tow pro supplied and fitted by a local autoelec for $525. I had a quote from a local ARB shop to do the same thing for ~$600. I also had 2 x anderson plugs with smart solenoids fitted and a 12 pin plug wired, breaksafe unit fitted etc etc. Final bill came to $1800 which all up - supply and fit everything - wasn't too bad. Certainly didn't take 8 hours - more like 5.
regards,
Wayne