This just covers plugin-based mods that Sweet considers important for her build/preferences, as well as added content that is considered ostensibly indispensable.
These are not all required for her suite of mods, and a number of them are a matter of taste.
These are not listed in order of prescribed load order - a number of them may have been custom patched for her build in a way that ameliorates load order consideration.

Indispensable:
RAD - Makes radiation much more consequential. Incredibly important.
Just Assorted Mods - Duh.
JBT Improved
Famine - Sweet Config Settings - https://pastebin.com/wzWbUz6M
BURN - Hardcore Fire Effects
TTW Quick Start
Delay DLC Redux - AGE and DMT internally patched for this mod if it is present.
Purchase Display - Many items placed in vendor areas in Sweet's mods are intended to be purchasable this way.
Follower Formula Redone
Simple Attack Reactions - NV+TTW - Makes combat much more responsive and less of a DPS race.
JIP Companions Command & Control - Turn off companion health reset and infinite ammo.
Enhanced Movement - Sprint system from this mod.
Player Combat Priority - Ameliorates an extra degree of companion's being "ez mode"

Miguick's suite of mods:
Armor Damage Overhaul - Absolutely crucial, makes apparel health more consequential. Without this mod, only body armor is damaged.
Weapon Requirements System - Absolutely crucial, makes weapon requirements actually matter. - Sweet Config Settings - https://www.nexusmods.com/newvegas/mods/79005?tab=files&file_id=1000130906&nmm=1
Reload Reloaded
Power Attack Tweaks
Critical Effect Fixes
Ammo Script Fixes
NPC Addiction Fix - Prevents NPC stats from being skewed.

Important:
Harder New Vegas Strip Access
Loot Assist - Makes looting and holding onto crafting items way less tedious.
Universal Water Bottling - Preferred water bottling system. Tweaked plugin to make each bottle require a cap to bottle present in #mod-share. Bottle return in Sweet Consumables is recommended to be set to off - there's tons of bottles in the game, so this gives a reason to continue to be picked up.
Simpler Realism
Immersive Minigames - Preferred minigame bypass. Altered version present in #mod-share that reduces the minimum threshold hack/lockpick time setting.
Mr House Assassins
Desert Natural Weathers - Best weather mod.
CC - Rain
Interior Rain
Charisma Affects Reputation - Charisma always needs boosts to be more important.

Content:
More Mojave - Great locations in areas that could really use them.
The Living Desert - Very high quality, sdds much needed population. Use with Sweet's patch.
Vault 22 Floral Overhaul (Qolore Version) - Dramatically improves vibes of one of the coolest locations in the game.
The Great Mojave Interior Overhaul
A World Of Pain FO3 (With Sweet Pain) - Adds an enormous amount of dungeons and lots of playtime in high quality locations.
A World of Pain Revised (With Sweet Pain NV) - Adds an enormous amount of dungeons and lots of playtime in high quality locations. Extraordinarily important to fill out NV's otherwise rather empty worldspace with more things to do.
Mojave Raiders - Fills out worldspace with much needed encounters.
Mojave Wildlife (FO3-Style) - Fills out worldspace with much needed encounters.
Faction Wasteland Presence
Real Weapon Mods (My Version)
Rob-Co Craft-O-Matic Suite (My Version)
Skill Items (My Version)