Are you kidding? Don't be so hasty. It's probably something stupid and obvious-I've done that many times.
What have you tested so far?
You said you were getting fuel, so would you second guess and almost buy a fuel pump?
You may be getting spark? How are you testing for it?
Other things to check but not buy (unless you're positive):
ECU
Wires
Relays
Alt
Battery



Do you have a repair manual? Start with a systematic approach and take you're time.
Also get someone else involved-?? Good luck.