impy! If you can achive this it would be some achivement!!!
It seems to me that you are doing good so far.
I am currently trying to do a no-loss impossible mage that uses as few days as possible, hopefully no more than 7 days. That is hard enough for me... Personally I agree with Zechnophobe that your challange takes away some of the fun of the game. I like digging for treasures, and I like level 5 units. I like doing massive damage with the pet, like Fiery Phantoms against dragons and Ball of Lightning against huge enemy stacks.