Re-finance your current truck.
The other one is too much with too many miles. I sold my 98 a year ago, was an xlt supercab 4.0L 5 speed manual 4x4, 3" body lift, 33x12.50's, custom tube/winch bumper, nice leer canopy, limited slip, excellent shape with 140k miles for $5200 or so. It was much nicer than that one, new balljoints and tie-rod ends and all.
You're looking at a high-mileage auto, probably worn out balljoints, etc. Plus it would probably have to be a personal loan because it has too many miles for banks to want to finance it. That means higher interest. Get ready for the auto to give up.
Seriously, look at re-financing your and you can probably save a lot and keep your nicer truck.
2006 F150 FX4 Super Crew - Bilstien 5100s leveled 2", 35" KM2s, 4.56 gears, Detroit locker, Eaton E-Locker, Traction Bars, AEM intake, Xcal 2
2010 VW Golf TDI 6MT