Stop obsessing if it was worth 50. You did good. I've paid $30 for just a lid bail and another $30 for a bezel and lid therm from ereplacement parts. $50 is nothing compared to how much use you will get out of this. Even if you bought the $68 table it would still be worth it imo. Anything other than basic kettles are rare in my area. Sent from my iPhone using Weber Kettle Club mobile app
Ikea has some decent cheap butcher blocks you could use.
I called Weber CS yesterday and they were kind enough to take care of me and send me a new table for less than it would have cost me to make one myself so I went that route. I am still cleaning up the lid but here is how she sits at the moment.