I get what you mean by the whole OCD thing, Also when you say Over powered, The reason behind my prefabs being some what OP is a simple one of experience, Ive run a server for quite some time now with an all manner of settings & tweaks & the one thing I found to be absolute was the following... 3 Types of main player on my server over the past year or so...
Player 1) Only wants to kill zombies & mess about for fun
Player 2) Adores the game so kills zombies & makes a decent base
Player 3) Loves to show off so only ever builds & racks up less than 10 kills before showing off said Base & leaving (lol)
I set up my WOTW server & when I had the other Undead Legacy server for people in the mid category, There was plenty to loot & plenty to kill, If you have a server for 10 to 20 people of which its say 80% full no matter how you set it up you will always get the issue of, Erm played for 2 hours & everything has been looted ? Couple that with all the different settings people use for respawn times & you can get bored very quickly, You have NO bike, Your low level & theres nothing to loot except the most basic of prefabs that people leave well alone..
So Im gonna say Gd Luck with the balancing

& just keep in mind that from what ive experienced personally you can never have to much loot so maybe a bit in between is maybe not such a bad thing...
When I said about making prefabs, I wasnt assuming youd add them, I meant personally on my own server, I always Run the 2 servers, UL & WOTW, Valmod I play online if I can find a decent server but thats become hard in these past months cos everyone wants Alpha 17...
I always Mod in & out certain things to do with play style, Like my WOTW server has something added, Like a decent Mixer file config, No offense to Magoli but I feel the default one was a bit of a mess when spawning a new world so thats been tweaked, My own prefabs added in certain areas & so on, Augers, chainsaws of all types, NO up after shot cos the whole jerk thing is stupid & shouldnt even be in there as ive used them in real life & if they did in fact do that they would be usless...so thats removed, A full set of ammo boxes has been added with all new icons replacing ammo & there box art, Insperation taken from UL of course

Extra things like starter items & general tweaks & what you have is a server thats better suited to my own game style which is I love the game, so build huge bases & small ones, underground & above while always finding new ways to slay the zombies every 7 days
Everyone is different I suppose but then its my own server so my rules lmao...
Edit, & when you say its just a MOD, Dude, Total respect to everyone who has done mods for this game, The only reason this game is still alive today is due to modders like yourself so take that Bow & shush lol... Lap the respect up as its deserved, I have the utmost respect for those who have made them.... same with everyone else I imagine

Keep it up & never stop cos im really looking forward to UL 2.0, more so than Alpha 17 & I say that with honesty cos what they change, upgrade & add I know modders will improve on based on their ideas which I know will be freakin awesome, Really looking forward to WOTW, UL, Valmod & RH to be out on Alpha 17 & hope they are all as playable as they are now....