Hello,
In my professional opinion, I wouldn't use any of those. I would use this:
https://www.gta5-mods.com/misc/gta-5-gameconfig-300-cars
I would also look into combining dlc's as a way to have unlimited addon vehicles.
Video for combining dlc's:
https://www.youtube.com/watch?v=RDcYYC7cSvc
Or if you want it as one dlcpack:
https://www.gta5-mods.com/vehicles/70-fighter-and-sports-planes-add-on
I would remove the Heap and Packfile limit adjusters, and replace the gameconfig with the one I linked you. It is well known.
Best of Luck!