I have yet to see a write up on this.
This was going to be my project too, but a 5.0 donor fell in to my lap at the right price.
Your in for fab work here, custom motor mounts and trans mounts. Radiator needs an upgrade. You should be able to keep your stock dash as the vss on your truck is in the rear end. You will lose ABS. The CEL will be on 24/7 from a missing engine and you need the current PCM to drive the speedo.
On the upside the 4bt only needs power and fuel to run. I would say to plan a fuel cell and ditch the stock tank/lines all together.
This will be a bit of work and lots of down time.
99 x-cab 4x4 4.0l auto
mods, cranked t-bars, silencer delete, k&n drop in, Rebuilt trans ,Trans Go stage 3 shift kit, 3200stall Fuddle Racing Torque Converter,
VANIR 63mm TB, Roush split rear exit exhuast, E-Fan, JBA Headers
Auto up/down both windows, OHC, EATC (soon to be modded)
03 Crown Victoria Police Interceptor