I need help deciding on a motor.

[Jason Stoll]

Hey everyone!
Im brand new here.
My life revolves around the water and a week ago i just purchased a
1957 Powercat 18dc

The boat is super cool and not damaged.
I just have to job of sanding and painting basically but thats a story for another time...

I need help with finding 2 engines for it.
Im staying with 2 strokes but thats about all i care about right now.

I am interested in learning about the Mercury triple stackers
and Yamaha.

I want at least 2x 70-90hp

The problem is also that i do not know what the curb weight is.

I see a few old Merc's out there for sale and they are enticing for me but i don't know anything about them such as finding parts or what models were good or bad.
I do want to make my life as easy as reasonably possible so ease of use and reliability is important.
I do obviously have an interest in style but thats not totally important.

Thank you all for having me! Looking forward to my time here.
Jason