I am running a full OME setup. I initially installed as the OP had, 884/895e. I found that with that setup my hub to wheel well was 23" up front, 23.25" rear, essentially level. My issue is that it drove and looked nose high. I called ARB and spoke with them. They said 895e were not intended to be paired with 884s. That would give rake on a 4th gen V6. They said 883s were proper pairing up front. Just like 895 and 895e, the 883 and 884 are same spring rates they are just 10mm or 1/2" difference in height. Current ride heights are 22" and 23ish" with front DS trim making it level.
I love the ride and am very happy with the purchase. I am not a rock crawler so the kit does what I ask very well. I have not installed UCAs and am just out of oem spec for caster but no noticable performance or wear effects. CV angle is much better at this setup than with 884s.
See my build thread for pics.