'[Grinder Building] Iron Farms, Dungeon Grinders, and SpawnPad Grinders

Hello,
I own a Grinder Building Service, Here is a a model list, with a price list and reviews from previous customers:

These are Grinders that use Spawn Pads to their advantage.
Docm77's Enderman Grinder:
Desc Uses piston to shove endermen to either your fists or to DC's for of their precious pearls.
Price: (YOU Supply, 9,500 per level) (I Supply 13,000 per level)
Completion: 2.5 Months after request, possibly more or less.

Etho's Practical grinder:
Desc: Uses a semi-efficient design with water streams, will not spawn spiders.
Price : (I use stone, if requested in PM, I will make Price arrangements according to material requested) 1250r per STONE level.
Completion: 2 weeks after request, possibly more or less

Minecraft Muse's Classic Mob Grinder:
(No Vid available)
Desc: Uses classic MOB AI to it's advantage, 6x6 pads spawn mosters as they carelessly fall into water and with the use of water current they are killed by a simple lava trap, where their items are then collected.
Price: 600r per pad
Completion: 1 month after request.

These are the one of the best breeds of dungeon-style experience grinding.

YOU Find spawners. I will put a list of known blaze spawners if I have dicovered any above this.

Single- 8,000r
Double-17,000r
Triple-30,000r
Quad-40,000r

Simple Iron farms, gives you all those roses and iron. or you could make an army with them too

Dom77's Four Cell.
Desc: A sipmle four cell grinder put Iron golems to their misery and will bring lost of people to your outpost.
Price: 10,000r
Completion: 1 month after request.

These are cheap, easy to find and effective.

Single-550r
Double-1,000r
Triple-1,400r
Quad-1,600r

Will build blaze grinders! Find that one spawner but don't know what to do? Here I am!

I'll do dungeon grinders now Those will be cheap too