Originally Posted by Sugar Bear

Did the starting problem occur before the listed repairs or afterwards? It sounds like it may be losing pressure that the pump compensates for when running but not on starting.

Absent gauges installed to watch the pressure stability, powering the fuel pump before attempting to start may help with diagnosis. If running the pump makes it start better then it's losing pressure while sitting.

Later models and IIRC this car also have pressure check valves at the pump and filter. If I had to guess without tests I'd go for replacing the check valve, inexpensive and easy to do.

Yes, it is getting difficult to find experts on these cars

Good Luck!!!