So after I got the Quote back from the guy that installed my floor in the 310 with a 1/2" subfloor for under 3k told he me it would be 13k to do my 340. So it looks like I'm going to do it myself. This isn't a problem just a pain cause the boat is 2 hrs. away. My only question is how to cut in the storage covers? I'm using Plasteak Ez Sole which is similar to Pergo. I'll make new cover out of 3/4" ply wood.