Mini tub=What tire/wheel combo

This winter I am pondering mini tubbing my Demon. For those that have done this and know the true specs of their wheels.

How wide of a wheel do you run?

What Back space?

What tire size?

Currently I know I can fit a 15x10 with 3.75" BS and a 28x11.5 tire. I am still on the hunt for the correct dimension wheel with the Convo Pro design. 15x12 seems to be one of the most common widths. Which is one of the main reasons I am thinking about the mini tub option. Not to mention I want a nice FAT tire out back. LOL.

Thanks for any info and a post a pic if possible!!