Repowering V20- looking for some input

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My old Yamaha 175 precision blend is finally kicking the bucket. Its been a good motor but was not taken care of long before I got it. 8 solid years of running with 0 costs except oil and gas.
So i got what i consider to be a deal on a 200 hpdi that is used but well taken care of. What I am wondering is, while i have the engine off should i slap a manual jack plate on there to make repowering a little easier in the future(I plan to keep this boat forever and will likely keep repowering.) and have the ability to tune out the engine height without pulling the motor and raising it on the holes? I was thinking a cmc manual jack plate. It has 4.5-5' set back. However this motor is about 75 lbs heavier than my current one...will that push my stern down too far have 75 more lbs setback 5"?
Also is anyone running a Yamaha 200 HPDI on a v20, I am curious to what performance and fuel burn i can get. Trying to decide where to start with finding the right prop. Thanks in advance guys.