298 is a tricky one, but getting the 69 cards in a row is possible.
Use the Power Reflect on this level instead of Scarab or Reserve. It's usually the best option on a level where you need to get many cards in a row into the deck.
Start the game with taking out the two cards from the deck so you have two decks from start to put the cards in from the table.
Use the Jokers only when you absolutely need them since there are only 72 cards on the table, which means you will need to pick all of them correctly in a row from start with only three cards let to spare on the table.