Never did replace the injectors. I attempted avoided the issue by getting in front of any potential. Observing the number of reports from owners researched ways to protect the injectors from small particle damage. GM updated the filter specifications after 3 or 4 years from 10 microns to 2 microns. GM also doesn't employ a lift pump in the tank like the same Bosch injection system used at the time on the Cummins.
I added a lift pump, and a secondary fuel filtration system (pictured). Cost around $400 total in hopes to avoid the issue. After 126k miles when I sold it the UOA results never came back with any trace of fuel present in any sample. It idled perfect and zero smoke from the exhaust.
If you've already spent $1300 and haven't stepped foot into your EB, your in trouble. Lots of little things to tinker with on this truck as well.
One thing you'll notice is the lack of door detents on the Ford. It has one at about 15 degrees, and not another until the door is fully open. I purchased a set of OEM modified door detents from a small fabrication outfit, name escapes me, these were done right as Ford should have done it from the factory. If you haven't purchased these already add them to your $1300. You can thank me later.
Get back to the US as soon as you can. That Fukushima disaster is larger than the public or the US military as been told. Seventy of the USS Reagan crew now have radiation and or cancer symptoms. Videos from San Francisco beaches show that areas of radiation contamination five times the normal expected level. Even snow in the midwest is indicating two times normal levels. The further way you can get the better. There's no absolute tie to Fukushima, that's at least what "officials" are saying. No matter the source radiation is radiation, no hiding from that. No where appears to be immune totally immune.