If your trailer is tandem axle, with spring suspension, you likely have two bunks that run the length of at least 1/2 the length of the boat. The bunks probably are laid so that the boards are wide side up. These may or not fit under your lifting strakes and may not be strong enough to support the weight of your boat in this configuration. You may find you need some additional set of bunks to support the weight and help to centre the boat when retrieving. Two per side and spaced to fit under two sets of lifting strakes. This may involve putting the boards on edge. You may also need a set of bunks at the front to assist in centring. . You may still require at least one set of keel rollers to initially support the boat as you load it. To give you an idea of which I speak, have a look at this utube video. the boat is not the same as yours but the principle applies. Once you get past the first part the rest is just "candy"