Son, you're in a dark place. As a brother I'm going to have to force an intervention and put you on a five step program.
First, please, please put the angle grinder down and step away from that beautiful Red lid.
Second, take ten deep breaths.
Third, either reach out to your WKC brothers and try and find period correct bottom vents or call Weber and get some current models.
Fourth, ask @zavod44 for forgiveness and hope he allows you to order a replacement top handle.
Finally, complete the RRR and post a cook, ANYTHING but pizza, on this amazing piece of Weber history.
I know this all probably hard to hear, but you're not yourself. This is for your own good. Everyone's own good!