Looking for a recommendation on a electric trailer brake controller. Doesn't need to be fancy, the only thing I tow is the small off-road trailer (pictured below) and my 20' deck boat from my house down to the lake (3.5 miles). The only thing I really require is the ability to swap out the controller between my 2000 LX470 and my wife's 2016 4runner. I plan to use a plug n play harness in her 4runner, and hard wire a harness in my LX. Just want something cheap that will work.