Something to watch out for...some folks have said that the delay/ejection trains on old Enerjet E's became unreliable. If you've kept the motor in a controlled environment I can almost guarantee it will thrust properly.
I still have a couple E24's and at least one F52 squirreled away somewhere, plus one RDC Enerjet 8 and two RDC Enerjet 22's (99 N-sec, about a G62). Those will never see the hot end of an igniter...