just my 2 Cents ( I think I have some experience with big boats):
the 83" Chief or the 84" Apache (nearly same hulls) are wave eaters. Those boats are not designed for calm water conditions due to their size, these boats need heavy water and they can handle it.
And boats with a length of over 60" should have 2 counterrotating props to get more stability and better driveability.

But if those boats are built with too less weight they will handle on waves like a foam block: not very funny to drive, they will dance on top of the waves and this is not very funny. Wind will be an issue also.

Solution: weight must be built in. And power.

So a single twin would be - imho - not the best solution. It is better to install:
- 1 coupled Polini (= 2 POLINIS are coupled to work likea twin) with splitter overdrive gearbox, was made here in Germany.
- 2 twins counter rotating (mirror like package would be fine)
- 2 triple engines like my WASP HOUSE, counter rotating
-one 4-cylinderwith splitter overdrive gearbox (like my MHZ-Reckless)

At the end you need a weight of approx. 30kg and power of more than 20hp to get the ultimate fun.

Do not take steerable drives if you are going to install proper power, we allway had bad lucke here with those tries.

If you do not have the money to spend I'd recommend to store this boat for better times and take a smaller one, maybe a MHZ-showtime, a SV43 bei Andy or a 65"Apache (several sources)