I really appreciate the input. I belong to a ukulele forum and I was kind of concerned that I would post the same stuff that others had posted in the past (IE what is the best uke) so I looked around first. Your input is much appreciated.
I think I am going to go with the 5 foot wide but now have to decide on the length 9 or 10 so I think I will order the plans, start by laying down to get measured

looking at sleeping pads and measuring, measuring stoves, coolers, etc. and modifying the plan for me. (uke holders, surf fishing rod racks, lots of cubby holes... I was laying in bed last night trying to visulize it all.
I think I am going to weld up the trailer myself. I use to weld buckets and teeth on excavators when I was a mechanic with large gasoline powered Lincoln welders on trailers, that was 25 years ago, I bet the new welders are smoother that those old Lincolns.
What do you all use to weld with? Can I get by with one of the Harbour Freight $100 specials?
What I think is so cool about what you all do is, you do what you want.... I need a shelf here, a table to pull out, a screened roof, paint it like a watermelon, etc. It's like that spirit has been lost in our society, creativity and ingenuity.
When I was a heavy equipment mechanic my mentor used to complain that all mechanics were now "parts replacers". If he didn't like it out came the torch, sledge and welder.
Thanks all!!
Check out our Uke band if you get a chance:
http://www.charlestonhotshots.com I want to take it on the road with a teardrop with the name on the side!!!