Yeah, a raked hand on Party really just means any hand where you're dealt cards, whether you've contributed any money to the pot or not. Any pot of $5 or more is raked 50 cents.

You also can cash out any winnings at Party before you finish clearing the bonus. The rake structure and stuff is explained in the link below.

Party Rake Structure

Tournament entries don't count towards bonuses and since there's not really any rake in a SnG they probably wouldn't count towards your bonus. Either way, you can take you winnings out as you go and PP is soft enough so that you should have no problem winning money while quickly clearing the bonus if you multi-table.