1987 & 89 70HP mulifunction gauge upgrade?

I have two 70 hp Yamaha 2 strokes circa 1987 and 1989 on two different Boston Whalers that I would like to up grade to the more modern digital guages from the older multifuntion guages with tilt and trim. Which newer guage would work and what adaptor harness'es would I need? Is it even possible? Going back and researching older posts indicated that this mix might work? But with which new guage?

68F-82553-80-00 Trim/Oil harness
6Y5-83553-N0-00 Gauge harness
6R3-82541-00-00 Adapter harness
6N7-82541-00-00 Adapter harness

Thanks, 4whaler

[boats.net]

The Tach would be 6Y5-8350T-82-00 Multi function tach.

4whaler

Great, what about any of adapter cables in list above? Which one(s) would be needed if any.

[boats.net]

You would need all of them.