Your information is correct
It is 6 decks, and while they don't take a hole card, they only take the original bet if the dealer gets a blackjack so the regular H17 LS DAS strategy is correct.
If you play 2 hands, the house rule is you need to bet twice the table minimum on each hand, so you're better off playing 1 hand of $5 in 0 to negative counts (or even better, sit out until it gets positive) and try to spread to 2 hands when it does go positive. Creatively sitting at either first or 3rd base and primarily betting on the adjacent spot can help you "hog" the 2nd spot for positive counts.
Back of the napkin calculation for betting full-kelly (13.5% ROR) shows you need about a $6000 non-replenishable bankroll to have a max bet of 2x$50. You're pretty safe bringing $1500-2000 for any given session (believe me, you will need that much on some rough nights).
General formula is:
(Bank / 266) * (True Count - 1) = Full Kelly bet on one hand
Playing 2 hands you should bet about 75% of the optimal amount on each hand.
In any case, be prepared for large swings. Don't get over-confident if you win lots at the beginning, and don't get discouraged if you lose a few max bets in a row at sky-high counts. If you have the discipline and nerves to trust in the math, you can make a little money.