Creative Deal Structure Brainstorm

Hi everyone! I'm an independent sponsor, and the investor that I'm partnering with for a deal that I have under LOI is looking to change the deal structure that the seller and I agreed on from a small percentage of equity rollover and the rest cash at close to a percentage of equity rollover and the cash paid out over three years. It wouldn't be an earn-out, per se; the business would just have to maintain the same revenue level in order for the seller to receive that cash.

From the investor's perspective, the business is too dependent on the seller to give them a big wad of cash up front, which I completely understand. From the seller's perspective, this is a massive change and a huge decrease in cash at close, and he's not thrilled - which I also understand.

I'm hoping to leverage the collective creativity of Searchfunder to come up with some alternative structures that would protect the investor's downside if the seller were to abandon ship once he gets his cash and that keep the deal terms as close to the original as possible. Obviously, we're going to have to meet somewhere in the middle, but I'm open to any and all ideas of what you've seen work during this type of dilemma!