PLO Betting with a short all in

[K-Lo]

I think this sounds perfect and will be added for reference to our rulebook for clarification on this irregular circumstance:

Any player facing a bet, may raise 3 times the largest bet required for a call, plus the remaining trail, plus the pot.

I like your examples!

For clarity, I personally would say that any player facing a bet "may raise to a total of 3 times the largest bet...."  Even your examples recognize it is the total pot bet and not the actual amount of the raise over the calling amount.

[Brian Vickers]

When I teach dealers/floors my wording is "3 times the bet you're facing..."