I am looking for a bimini and possibly enclosure for a 2004 353. Anybody know where to get one reasonble?

Where are you located? I had one custom made locally, and it turned out better than factory, in my opinion. Was much less expensive too.

I am in Michigan. Does he have the dimensions to build another or did he just work off from the boat?

He worked straight from the boat to be sure everything fit just perfectly. Mine had no provisions for mounting, or snaps, so he installed all of that as well. The whole thing stows easily in the engine compartment against the forward wall. Here's some pics of the full enclosure up...