Here is a youtube video to check out

It explains a bit about the server and it's features.
https://www.youtube.com/watch?v=rA6cMTBw7sg
First of all, let me explain a little bit about the server before going into details on your requirements.
Shining Moon is a server that allows the swapping between Renewal and Pre-Renewal at any given point using a NPC called "World Gate", it transfers the character between
two servers ingame and loads the appropriate information of the character and applies it.
Pre-Renewal- Episode 13.2
- ASPD 190
- Rates 1-100x / 20x, 0.04% MVP Cards
- Every account have 5 storages each with 600 slots
- Used only Pre-Renewal formulas, mechanics.
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Renewal- Episode 13.2
- ASPD 193
- Rates 1-100x / 20x, 0.04% MVP Cards
- Every account have 5 storages each with 600 slots
- Used only Renewal formulas, mechanics, except uses Pre-Renewal drop system.
The inventory, storage, guild storage, quests, achievements, monsters, items, pets, homunculus, mercenaries, hotkeys, skills and everything is seperated between the two servers and are not shared.
So each server has a unique character with the same name you've chosen at the character creation, which is loaded / saved / modified when swapping through a World Gate.
The character select shows information based on your character(s) last location.
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Now, let's get into your requirements.
Base Rates between 10x and 30x
We have rates that you can chose yourself, between 1-100x.
You can type @baserate and/or @jobrate to change them at any point.
There is also a reward system in place that awards lower rates set to max level rebirth - The lower rate you level at, you get a bonus to dropchance.
Here is a link to the explanation:
https://www.shining-moon.com/pre/index.php?title=Advanced_LootingPre-Renewal, no 3rd classes
In pre-renewal we only have up to 2-2 classes, you don't have to use the World Gate to move to Renewal if you don't want to.
Dual Clients allowed (also in WoE)
Dual clients are allowed anywhere.
However, there is a limit of 24 members of a guild in 1 castle at a time.
@autoloot, Stat and Skill Resetter, Job Changer, Town Warper
We have all of it and alot more.
No imbalanced costums/donates (higher stats than official equipment)
We have alot of costumes and they are enchantable.
Enchants are based on the official costume enchants.
https://www.shining-moon.com/pre/index.php?title=Custom_Headgears#List_of_Enchant_Stones3rd party programs like AutoPot banned
We allow no third party programs or macros. And we are Gepard Shield protected.
Platinum Skill NPC, Dungeon Warper, Healer
We have @warp however it'll only warp to specific coordinates at the beginning of the map and cannot be used as a fly wing or to teleport to a set of coordinates.
Healer is also a buffer that gives Agility UP and Blessing. It also takes away alot of negative status effects and the super novice dying counter.
WoE
WoE is on the weekends, however since the Pre-renewal was released in february it's not released there yet.