New FPR is like $150 and 1/2 a beer job.
Agree, that newer/low miles is preferable for piece of mind, but the reality is, if your older, mid miles truck is well kept, the odds aren't really against you.
Case in point (knock on wood). Old Dodge, 170k, only 1 F O R D (found on road dead, lol) failure and it was at about 50k miles. #4 injector line.
Newer 2016 company Silverado, trans puked at 60k miles. Still drive able, but nonetheless, a low mile shouldn't happen type issue.
Of the 25 or so new company trucks I've had in the last 25 years, about 15-20% of them had some unexpected problem with low miles and almost new that left the vehicle somewhat or completely incapacitated.
Of the 10 personal trucks in the same amount of time, half of them run to 150k or a bit more, 3 on the road breakdowns and both were low miles at the time. Same percentage.
And 2 of the failures were not end of lifespan of a component stuff, but rather freak stuff. The 3rd failure was injectors on the Dodge, but it still ran, it just wouldn't start at -30F after sitting for 3 days.
So it's flip a coin. $ vs peace of mind if you have a good truck.
BTW, the LLY bone stock will tow a little better than the best new gasser on the road. Throw a little tune at it and it'll embarrass the new gassers.