I replaced my reico hydraulic jacks on our 1986 camper several years ago with
atwood electric jacks like you describe. Purchased them on ebay for $800.
Did not have a lot of trouble routing the wires, was able to conceal them all
interally in the camper hidden spaces. Had to run the right rear jack wires
under the door threshold. The left rear wires ran behind the shower but with
all the external access doors was able to fish the wires successfully. The fronts
were easily concealed running the wires on top of the freshwater tank. Be sure
to wire in a cutoff switch and fuses in the power lines.
The old jacks were torture compared to the electric ones.
Good Luck