Re: Oh how the plot thickens!!
Dude, that boat has a draft of almost 5 feet. Launching is from any trailer is going to be a royal PITA, unless you have access to a very steep ramp. As to using 'tow rope' - just think about it: you have a boat that weighs 4000 lbs plus lets say 2000 lbs for a trailer. Do you have a properly mounted power winch on your vehicle that can handle this kind of a load?
And launching is a small problem compared with retrieving the boat. You have to park that boat exactly right on the trailer while the trailer bed is angled on the ramp. Not easy, my friend. You almost need a diver to make sure the boat sits right.
Both the keel and rudder on this boat are rather delicate - too delicate IMO to make a trailerable boat.
Be kind, for everyone you meet is fighting a hard battle.