James,
I was wondering why someone hasn't developed a prelube system. It appears they have. I don't see any downside to the system other than paying for it and having a few more fittings that could possibly leak. The system makes sense and may well be worth the $600-$700 when amortized over a few years.
If there is enough interest, maybe one of us could become a distributor and get a better price. I did not see the Series 60 engine listed on their site, but I don't know that means they don't have a preluber system for it.