850 outboard can i add power from from 80s mariner 45?

[FstaRockr Burns]

Hi guys, im converting a 64 larson to outboard. Will this work?

https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.com/ulk/itm/112899444232

 

[FstaRockr Burns]

Sorry meant to say power trim.. Will this fit?