I have been trailering my 23' here in so Fl for 27 years with a Float-on type trailer. I'm not a trailer Guru but I know what works for my 23' SeaCraft
1.) I would advise setting the bunks under the hull's stringers. The bunks are set 54 1/2" apart (Outside Edges)
Notice they are inside of the trim tabs and clear any salt water intake strainers or Transducers.
2.) Construct a Center Chock matching your VDR coupled with forward guide bunks. These will line up the hull when loading every time.
3.) Don't Skimp, your investment depends on your ability to STOP. Stainless Steel Rotors & Disc Brakes are mandatory.