I have a 2006 challenger 180 SE (wake tower)...it came with a "Seadoo" trailer which is actually manufactured by Karavan..
Overall length from swim step to end of trailer tongue is 20'-2 or 3"
Don't forget the Challenger has a wide beam, so if your trying to get through an 8' wide garage door..that ain't gunna happen!
I have 3 car garage, a 16' and an 8' door, being able to store it in my own garage instead of a dirt field at $125. a month was a prerequisite..the angle thing made it all work out. I back my boat through the larger door and angle it into the third car spot...the collapsible wake tower makes it a piece of cake.
I see your in Phx. I am in Cave Creek (Tatum & Dixeletta), you are welcome to come by and measure my boat, or if I am taking it out, and your not too far away, I would be happy to drive by and you could see if it would fit in your garage...let me know:cheers: