conversion of control box

I have a "90ETLJ (1986 Outboard)" on a 1986 Fisher center console. The boat had two Yamaha's on it, a 90hp and a 9.9hp, now it has one. I'm refitting the boat to a double console with walk-thru. I need to change out the dual panel mounted control, to a single side mount. Any suggestions on model number that will "plug in" to the existing harness ?

[boats.net]

Use 703-48207-17-10 side mount control box for the 90hp.