Looks like a very nice build. That is a lot of wood. Nothing else can move that much (that I have seen) for under $10K!
For the tarp and the small stuff, do you rake it onto the tarp, then pull the tarp on to the "imagineero trolley" or do you put the tarp on the trolley and throw the stuff onto it?
Mine came on Tuesday...ordered late night on Friday, and an 85# box was on my door step when I got home Tuesday. They really get things out the door quickly at TreeStuff! Haven't had a chance to use it yet...and next week is not promising either, but soon! It is not hard to see it is made VERY solid....they didn't go cheap on the parts (except maybe the retaining pins for the wheels. Most of the videos show this:
http://www.pivotpins.com/images/lynch_pins.jpg
While mine came with this:
http://www.globalspec.com/npapics/87/112784_102520126961_ExhibitPic.jpg
it will hold just fine, but is not as easy to take on and off as the previous. Might go fork out $4 to get the other if these become too bothersome)
Also of note, I did some welding on a trailer over the weekend. A timely reminder that I am better off buying the Arbor Trolley
... I am not that good of a good welder! ... even if I did start with a good set of plans.