OK Mars;
It sounds like you have done some serious Mods to the Bee - Good Stuff!

BUT... (there's always a but) you didn't mention the Horizontal Stab, this item is designed as a 1/8" piece of Balsa. I had TWO of these break in flight, my recommendation to you is to reenforce the H Stab.

I would suggest that you build a H Stab with the Leading Edge made of Plywood or Spruce (just the first 1/2") that will stiffen the H Stab without adding too much weight.

Good Luck and let me know how it all works out!