Just take your time with the trolley install. Measure three times, then drill. It took a little patience and the help of an extra set of hands to reach back in the PA through the hatch to put on the nuts and washers for the stern pulley block. You also have to work your hands around the rod tubes in the bow hatch to get the nuts and washers placed properly. My hands were just big enough to make that very challenging. It's doable, just don't rush it.
It's all about leverage. I did this post on my Yakima rack system on my Toyota Highlander earlier this year. I just lift the front of the PA onto the load assist roller on the back of the vehicle. Then I lift the back and roll it forward. I probably never lift more than half the weight. It is a great setup that makes it easy to load and unload so I have no excuse not to be on the water often. I'll be out tomorrow and I can't wait! It'e been a couple of weeks. With the wind blowing the way it is, my anchor trolley will be put to good use.
And here's a pick of my rack system.