I have 250k Marriott points.

Could rack up another 20k organically in the next few days without too much difficulty, let's say a week at the latest; then a bit more time for that 20k to post.

How quickly should I expect to receive the travel package once I have 270k cleared?

Basically, I'm interested in the current 35% bonus transfer to Avios for the miles portion, which lasts until the end of the month. Just wondering if this is doable.