What has more armor?

A giant stone turret, or one of the squishiest ADCs in the game, ? Hint: One of them will have 2x the armor of the other late game.

It's Kog'Maw. Kog has 79.4 armor at level 18 and a giant stone turret has 40 (The first 2).

My suggestion? Turret items and scaling. Turrets have item slots too, as well as levels technically if you click on them. Here's my idea of what it should be like. They will scale at a rate of 3 armor and MR per level(I think that's fair) and 40 HP per level. You can change these rates.

Certain items should be restricted to be bought after a certain time has passed, mind you. Here are some of my ideas, feel free to add your own. (Items will be 1.5x as expensive, but more effective on turrets) Building sunfire cape on a turret is restricted until the nexus towers and 35 minutes into the game. This item will give the tower stats around 80 armor, 600 health, and it will burn for 55 magic damage around it (2.5x more effective against minions.)

Building adaptive helm will add 70 MR And 550 HP to the turret and should be restricted until 45 minutes into the game and can only be built on the nexus towers. It makes it so that spells and effects do less damage to the turret the more they are used. (Trinity force, Auto attacks, Auto attacks that have MR attached, lich bane.)

Building Warmogs should be limited until nexus towers and 40 minutes into the game. This item will give the turret the ability to regen 4 health per second.

or Both locked until 45 minutes into the game and nexus turrets, and they give 1.5x the normal stats to turrets. The banner of command empowers all minions around them with Armor and magic invulnerability, and gives them extra damage. (Does not apply to super minions) The ZZ Rot will give the turret 80 Armor and MR, and make the turret a void gate that spawns a minion every 45 seconds that scales with 5% Max HP of the turret.

Building this item is limited until the nexus towers as well, and 50 minutes into the game. This item gives the turrets 70 AD and 40 Armor. Once the turret with this item dies, the whole team is revived. Enemies killed in the next 5 minutes of activation of this ability will have death timers cut in half.

Of course there should be 800-1500 gold items to build on early and mid game turrets, but I haven't thought of those.