I am looking at 2 ranger boat models, the 170vs with a 115 optimax (this model does not come with trailer brakes) and a 178vs with a 150 vmax which does have a trailer brakes, but it is a heavier boat, my tow vehicle is a 2008 chevy 2wd automatic with 4.3 v6 could I tow either of these tow boats with that truck, I've never owned a fiberglass boat been told they will push you down hills, etc. Trailer brakes is a good safety feature but the bigger boat will mean more weight to tow?