Multikill Bounty Concept

I know that some time ago in Season 4, they extended the multikill timers to make getting those pentakills a little easier--but Riot never really made it clear exactly how long you have. What if there was a marker or an aura of sorts? You know, for clarity's sake. And that's not all. What if turning the tables and killing somebody who's about to get that quadra grants you additional gold based on the size of the multikill trainwreck? This might be a good way to help teams deal with reset assassins like Master Yi and Katarina, allowing at least somebody on the team to keep up in gold with the messy blur of Shunpo's and Alpha Strikes if they can score the kill. This will also slightly discourage reset assassins from going full YOLO mode and diving in to get as many kills as possible with minimal losses. Of course, this "Multikill Bounty" will stack on top of Kill Streak Bounties, meaning that you could get more than 500g for killing a fed enemy champion as they mop up your team.

What are your guys' thoughts?