BIG down payment will get your numbers per month down. Once you get into an upside down situation on a car and especially with a ride thats 50K, you will NEVER get away unless you hit the lottery. Example. Mine was like 51K out the door with taxes and all. I traded a paid off 2004 FX4 worth 12 K and put down another 8 K. Made my monthly payments on 60 months at $525 a month. I also got like 2.4 % interest by the big down payment.
As others have said, if ya can't swing it right now don't do it. Also the gas expense can be a bitch at 11-13 mpg. $100 fill ups are the norm. You may need to just hold off for the end of the year sales at ford and get into a loaded FX4 or simular F150 variant at prolly $10 K off the sticker, a loaded one for prolly $32 -35 K 4 wheel drive and all. They are not the Raptor but are damn good trucks none the less. Be patient. Don't be stupid.
I know, SCREW the OLD GUY! Well son, its only a ride.
BDRAG