kinda sounds like my problem. mine went to fire and then just turned over...leave 5 mins it would do the same, fuel pump not kicking in.
1. new fuel relay got the pump going, and changed the earth screw in the drivers speaker well.
2. after 3 weeks of the garage trying to get the car going, we jumped it, it jumped started 1st time..i gave it a 40mph 6mile drive, not boosting the car.
now she starts 1st time on the key...so must have needed the engine going to push compressed air out and bleed the fuel lines i suppose.
give it a go mate...nothing to lose!!