@kanadianborn Thank you so much for this

i installed the RDE mod and after a while, Grangers usually spawn empty and without cops. BOTH FIB and SHERIFF.
When i enter the grangers, the game crashes. does anyone know how to fix the issue

i think you just add all your stuff into an archive then put oiv as the file format
eg. Caraddons.oiv instead of caraddons.zip
But how you get to add the vehicles to their specific places,is up to the "openiv package creator".

try updating your open iv and make sure all your plugins are enabled.

google the problem and checkout the fixes
for e.g

from the SPA mod, you can purchase planes,boats or heavy vehicles from the respected sellers and you can also have them sent to you through the delivery services in the mod.
So is there a way to separate that service and purchase section from the SPA main mod, and just have that part in particular.
Dont ask why i shouldnt use the SPA mod for that purpose, i dont have any answer to that.
if you can make the mod....i can promise a few good deed$ coming your way.

The idea of a gunlocker in sp,sounds awesome.
would go well with the pickups mod.
restocking the locker, buying more ammo and new guns.i think the game would be more fun with that.Having the lockers at each protagonists house, that is after they've bought the locker.

If thats the issue, then check https://forums.gta5-mods.com/topic/79/tuning-parts-limit-problem