That walnut has plenty of holes for your project if you just spend the time to clean the wood out of them! ðŸ¤
Good you tested for number of magnets needed first, that is always a roll of the dice when you consider alignment, etc. Of course you "nailed it " so hopefully the drilling is almost at an end?
Those are to hold the trays in storage position right? So the spools don't randomly tip out when the rack is moved?
Going to look sharp when filled, very colorful!