I have owned the BushTec and they do not come any better. Having said that I do like the Can Am trailer. The one I looked at had an opening in the front of the trailer also. The weight is of no concern. I may like the suspension on the Can Am better ... can't go wrong on price either !
There are some used BushTec's out there. For the price and how much it may or may not be used,,,I'd go with the Can AM.
https://www.youtube.com/watch?v=uaDDA1rP9bA