Nah, Shakespeare would have just had three quarters of the cast getting killed.
The REDACTED fell down because they did. Yes, Lance and Andy saw them because they were seen going towards them.
It wasn't about the money - it was about discovering gold (and thus a site of archeological interest - potentially saving the field). Financial matters wouldn't have come into it. Lance didn't get much money from his brooch - that's not the point.
I'm sure Andy's house would be fine. Everyone will chip and his wife is basically a man and can do a lot of the work. Meanwhile, they can all keep living with his manly wife's mum Diana Rigg while the work gets done.
Basically, everything is happily ever after.