Thanks for the offer, Steve*
I'm going through my Bosch contacts, and currently have a low price of $374. There's also one that's made in India that I'm waiting for a price on. But I think I'll be going for this Bosch one.
They do make a diesel one of essentially the same design, only it has a pressure range of 0-5000 psi or so instead of 0-300. That one seems to cost about twice as much.
I checked eBay, and have just missed an auction where one of these plus a fuel injection pressure guage were being sold together and it went for $224! Man, I can see how I could get a little hooked on that eBay thing**