The thread on this fuel rail fitting is -4AN, so we need an adapter to fit our 1/4" NPT fuel pressure sender. While a straight adapter is available, this would make it stick out a fair way, looking less than average and may also interfere with the not-yet-fitted power steering fluid reservoir. So I decided to dog-leg it, and use a -4AN / 1/4" NPT 90 degree elbow adapter together with another elbow which is 1/4" NPT on both ends, and then the sender attached to that. Here are the parts together with the thread sealer for the NPT thread.
Here is the Schrader valve fitting, remove the Schrader valve with the valve tool ($3 off ebay)
Then the fittings can be installed. The chosen method of turning it 180 degrees makes it three pieces long, but tucks it away nicely behind the injector wiring and coil pack brackets.