I think you've already found the ONLY internet write-up on using those heads on that engine. Engine work on a Nissan is generally so expensive that only a handful of people have even attempted it.
Try the VGPowered forums, someone there may have more info. VG Powered Community :: Index
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'88 Pathfinder: 6" of lift, 33x13.50 Swamper LTB's, Rancho 9000's, L&P Stage 3 steering system, K&N, Pacesetter headers and 2.5" exhaust, Lock-Right locker, 110A alty and electric fan swap, dual batteries, 700W+ worth of PIAAs, etc.
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