Advice for 4 linking

Does anyone have any good pictures/advice for 3 or 4 linking an access cab with rear frame intact. Not ready to back half yet. I would like to keep the fuel tank where it is, but I think moving it may be the only option. What length links? mounting locations? custom mounts or bought it from somewhere? Ive been looking at Ruffstuff arms (only come in 48"), Ruffstuff or Ballistic fabrication mounts, trail gear axle truss and custom icon coilovers/bypasses. I think I can fit outside the frame rails because I have 2" wheel spacers and -44 offset. If I use 48" lower links, should my uppers be that long? I was told they should be 70% of the lower length but I am not sure

Any input/advice is appreciated, especially pictures