Here’s my version! Nothing super-different from Maddawg’s above. It still may benefit someone so here goes!
I got the tub from walmart for around 7-8 bucks maybe. DO NOT TRUST THE ROPE HANDLES! I dropped mine after one side slipped through.
I drilled a few holes near the bottom of the pvc pipe so the water goes down easy
Curl the pdp
After i put in the water pipe, I made a patch to block soil from dropping down into the basin.
Pvc is snug and also next to drain hole on side of tub. Having it on the same side let’s you watch for overflow while you’re filling.
I took the bottom of a used fabric pot to make my wick.
Packed it in nice and dense.
I used the rest of the fabric to seal the other holes.
Now she’s ready for action!
My bamboo dipstick 
Initially i didn’t really seal my holes that well. I just didn’t bother with it. But i liked the way @Maddawg sealed his. I figured I’d seal this one up nice and good since I’m taking pictures.
Well good luck and happy growing!