just build up some heavy ass deck, some high endurance deck and a very defensive deck and you should pull it off.
i don't remember in wich order you have to play them but that's how i beated it up.
also, if you have level 100 decks, make sure to have allmost all the stats over 30 or so. if you want to build a good deck, make sure to apply paint to the parts so you get some extra bonuses, white and the last ones are pretty bad ass.
also you might want to combine the double parts you have so you can get the super parts. they are a little stronger and might get very powerfull if you apply the right painting.