I too just aded a 1/4 hp Pacific Coast Chiller. If you get stuck PM me and I will ask my husband what he did.
Basically we have a bulkhead in the fuge that has PVC going to a 1200gph mag pump which is outside the sump, fuge etc. Then he ran PVC through the length of the stand and out the back side. The chiller should not go in your stand if it is inclosed. Then I think he went for flexible tubing to connect to the chiller. The output on the chiller we have going to a relatively small manifold with 4 pieces of lockline giving us 4 flow areas even though it is pretty low due to head loss etc.
Ours is keeping the reef exactly where we set it, and is extremely quiet. It does produce a lot of heat so next we may try to vent the exhaust outside the house.
Let me know if I can be of any help. (OK so I will get help from my huband. I really know very little about plumbing.)