price for baseplate installation

It looks lit it is time to upgrade our toad. The 2002 Tracker is getting a little long in the tooth and with the kids significant others coming along we need more room. We are planning to set up our 2015 Traverse and I am trying to get calibrated on what installation of the baseplate would run. We have a Brake Buddy so we don't need any brake mods, just the baseplate install.

Thanks
Greg