I can think of two options here...1) Run the water level in your sump high. I wouldn't do this one since any power outage might overflow it. 2) Fabricate a base to stand the skimmer on in the sump, extend the tube your powerhead attaches to so it is fully submerged again, and (optional) extend the return with a plastic flap to reduce the splash from the skimmer return. Depending on your sump you could also build a brace to hold it upright in the sump instead of the stand. I've seen this done with backpacks essentially turning them into the sr's...I'm sure this could be done to the Remora's as well
Good luck
Good luck