Praline Sweet Potatoes - Can be made Vegan!

As I was talking with a neighbor that's from the south about the different dishes we put on our Thanksgiving table.  She said that a staple from the south is Praline Sweet Potatoes.  I did some research.  This is what I came up with, and of course since my two favorites vegans will be dining with us, of course I had to make it vegan edible!  To make this dish you will need:
4 cups mashed sweet potatoes  
1/2 cup white sugar
1 teaspoon vanilla extract
3 eggs beaten (Vegan - Ener-G Egg Replacer
1/2 pint low fat Half n Half (Vegan - Soy Creamer)
1/4 pound of butter (Vegan - 1 stick of Earth Balance)
1 cup brown sugar
1/2 cup all purpose flour
1 1/4 cup of chopped pecans
1.)  Put an X on your potatoes.  To get 4 cups I used 3 large sweet potatoes.  Cut in the microwave until soft.  Start with 11 minutes and add minutes as you need the.
2.)  Heat your oven to 350 degrees and butter a 2 quart size pan.  (I did this in advance and froze the casserole.  I will take it out Wednesday evening.)
3.)  In a mixing bowl, mash up the potatoes.  Add in  sugar, vanilla extract, eggs and cream. Blend well, (I used my hand held blender) and spread evenly in casserole dish. 
4.)  Prepare the topping by combining the butter, brown sugar, flour and pecans. Mix until crumbly, and sprinkle over sweet potato mixture.
5.)  Bake for 30 minutes.