Got it swapped late night ...
My measurements were pretty close on the bunks, but roller on stand will not go any lower (first picture).
Don't like the swing tongue bolt/pin, two large plastic noobs on a bolt that has to be threaded thru frame, holes don't line up perfect so have to thread all the way thru, might loosen over time so it just pushes thru, but now is a pain in the azz to put in and take out.
Little sticker with a warning about checking pin every 250 miles ...
One step closer to being "Ready to go boating".
... LOL