Crazy glue it
If it holds the hard-hat dude you should be good - lol
We have the chrome pump unit in ours - it's the best solution for sure. They are not very much money and a hole cutter is likely the only tool you'll need.
Don't buy an expensive one because they always fail after a year or 2. I think the seals in them wear out and they suck air instead of soap.
Scott
PS - your Signature names .... made me laugh!