That's cute, I didn't realize taking two Big Meks would allow both compulsory troops choices to be dreads. It's the Ork 'Zilla list- great idea for a themed army.
I already want to build up an army based around two brother geniuses and their 'inventions' (2 dreads, 9 kans, 9 koptas) cobbled together from any and every vehicle sprue in the game.