Trunk Swap with NEW parts?

[Daver]

Hi Guys, I have had no luck finding a swap, So I have accepted that I will need to Purchase a new trunk lid. In going from 2015 - up to a 2017 I am trying to put together a list off all the parts I need to order new to do it right...

Wondering as few things - If part number 57509CA1709P comes pre drilled for OEM spoiler?

- If I can re-use my existing Stay Assembly on both sides (looks like same part numbers across both model years)

-The reason I ask about the above stays is I Saw a thread on these forums awhile back about the Trunk swap, and the newer trunk adding a "gas Dampener" but I cant find it anywhere on the parts list I'm using below?

I think the Trunk lid Stopper : (57533AE010) is the only part I need that keeps the center of the new OEM spoiler from flexing down too much? or will I also need The Stopper Hinges (57533A/B)?

The Diagram I am working off of is here
https://www.subarupartsandaccessorie...10-562-03.html


And the thread that shows the gas dampener is here
http://www.ft86club.com/forums/showthread.php?t=113504

Thanks For any help guys!