Look at mapconfig folder and storeowner.sqf ..
Try this way:
// Name, Building Position, Desk Direction (or [Desk Direction, Front Offset]), Excluded Buttons
storeOwnerConfig = compileFinal str
[
];
Then, the store npc are exactly, where u placed them.
Only negative effect is, there isn't a sell crate nor a sell desk. But this desk could be replaced via editor and selling loot outa vehicles still works ..
imo, it's worth it.