That's so much, I would start the power-down process for 30% of it. With that amount, you should begin to send your powered down Steem into SBD if you are interested in maintaing support of Steem. Also, a good practice to maintain some liquidity of Steem in general, in spite of the advantages of Steem Power. Given the time-frame required for power-down, utilizing steem and steem power effectively demand a bit of fore-thought. If you are anti-power-down, so be it. I've seen a number of people use the contest feature to do their best to promote new steemers as it is difficult to gain a foothold. My thought is hold a contest to see who can provide you with the most intesesting posts. From there, award some and promote the ones you like.