Once you get Des Counterblow, set and activate it right away during Bakura's turn. This will make him not attack you with all of his monsters unless their total attack is more than your LP, which can help you pass some turns and draw into more cards.
A deck made to speed farm Bakura. It works best during the +1000 pts campaign since you won't get 8k duel assessment even if you deal over 10k damage.
To get the most points, you'll have to use Titan Showdown by lowering your LP by half of Bakura. This can be risky since he has several burn cards.
If you have no cards to stall or to protect yourself, it's better to end the duel early, even if you won't deal 10k damage.
It's important to take into consideration how much Bakura's burn cards can deal. If you have 2000 LP, then you are usually safe. But at 1000 LP or lower, he can use Ectoplasmer for Ha Des, or Burning Land with Poison of the Old Man.
I've made on version of Lab Builder a bit less expensive than that, without Gravity ax and Megacyber. It manages to 7k, if you have one prismatic card. If you have a 3° typhoon and a 3° Wild tornado, put them in the place of Twister.