The two pumps are almost identical in terms of fitment - pulleys etc are the same, and interchangeable. I just took my EDC system off - cos it was (very) broken, and fitted a mechanical pump in its place. Reason being, parts availability is very poor - the needle lift sensor in number four injector is NLA. So, please be aware that if or when this dies, you have something of an issue.....
And I am not trying to be a harbinger of doom - just being realistic