"Question for those experienced restorers, the lid is not quite true and has several dings around the rim. Any advice on fixing it?"
Bridge the dings with a piece of wood. Hit the wood with a hammer to shape the rim against the lower rim.
nice ! you can actually "true" the lid by just pushing and pulling until it round. don't sweat it if its just a wee bit off.
for the bowl you will need to make a simple tool.