i think you have it somewhat backwards. People overvalue draft picks. Most championship redraft teams are built not just through the draft but also through in-season trades and free agency.
Assuming you're playing for money, at this point in the season you can give up a pick in next years draft, with indeterminate value, for a piece that will help vault you into the playoffs/championship game.
There was a stretch of a couple years in my local redraft league where I would make a big trade mid season, giving up a first round pick for a proven player I needed. Some people complained that it would upset the balance for me to go into the following year's draft without a first rounder but year after year, I kept making the finals and the people who got my first round pick kept missing the playoffs.
Don't overestimate your ability to use draft picks wisely. It's a lot easier to identify who's good in November than it is in August. Use that to your advantage.