1996 Johnson 150

[F.R.E.D.]

Been attempting to locate an engine harness for model# J150EXED. Any leads? It appears part is discontinued but there must be aftermarket solution.
I would also like to replace boat harness. To the best of my knowledge gauges (no indicator tach), switches and breakers are original to boat. I have located part# 0176341 @ 20'. I have a 96 V-21 that should be more then enough length and correct part, right?