Callaway- headers, tune, smaller pulley, possibly slightly lower suspension and explore fuel options/needs.
4runner- weld up the off-road bumper, install winch, install air-up system for bags and tires. Drive off road.
GL450- probably trade in/sell this year for a new DD for the wifey. If not, tune.
Assemble the pile of pole barn sitting in my driveway. Time for a shop to work on the above outside of the attached daily garage.
Buy a '65 f150.