Thanks everyone for your support and anecdotes, it helps to keep it all in perspective.

I did more surfing on JIS Engines and I won't be using them. They have a 99.9% rating on eBay but practically all of those purchases were for parts, not engines. Googling "JIS Engines" hit several Japanese car forums (Toyota, Nissan) and none of the comments regarding their engines were good.

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Never a dull moment at Berry Hill Farm.