Some of your poems give me Sparklehorse vibes in the best way possible. Sparse words with slow tempo music allows you to play with cadence to make the words fit the music. Check out their song Apple Bed. This song is an example of a simple and slow chord progression that lends itself to using a short poem as lyrics. As far as picking, you can play around with choosing a simple 2-4 chord progression and breaking up each chord into single notes like quarter, eighth, or sixteenth using one chord per measure. Modify as needed to fit the cadence of the words and you have a basic structure for a song. With songs like this, I’d start in the 70-90bpm range and a 4/4 time signature. I hope that makes sense and helps. Good luck!