[unclebilly]

I have some ideas...

Are these gas or electric?

If electric, this is easy, install an electric tankless water heater at the kitchen end and eventually replace your water tanks with a tankless at the other end of the house.

If you do want to keep the tanks, plumb one into to other. Set the first to room temp so it heats the water up initially but will have no thermal storage losses. This will make the second tank more efficient as it will have less work to do and you only have thermal losses on one tank.