GM everyone!

Working on this and interested in anyone helpful’s thoughts… I’m pulling the drawers out on this and planting herbs and hanging plants in random drawers

I plan to spray it down with 1 or 2 coats of water proofing agent but do you guys think I probably need to drill a hole in the bottom of each drawer and run lines into a funnel connected to the back for proper drainage… was thinking like clear flexi PVC tubing

I’m worried it’ll rot otherwise