$125...and you'll have to do your own search for Oceansmotions dot, etc...No links allowed and all that...:yes:
"Directed" flow is cool so the Squirt or SCWD would be first choice if going C/L...
Tunzee Turbell streams with an electronic controler would blow you away if you go the "powerhead" route...but probably "overkill" for a 55...
Next would be a "spreader bar" with 4-6 large diameter "flex" outlets (loc line)...
Or you could just sit on the hood with a canoe padle and "stir"
it all day...
A soft start electronic "wavemaker" and a couple cheap powerheads is also an option...
Sounds like you already have some of this equipment, so I don't want to rock the boat...BUT...one overflow and a matching pump would give you 10X turnover from your sump...(and plenty for your skimmer and filtration) then add another 500-700- from a C/L system and your good to go...
If you run two overflows...join them together under the tank and then drop a large line to the sump and a smaller line to the fuge...put a ball valve on each to "regulate" how much each gets...