Global stainless has a manual keg washer system:
http://www.globalstainlesssystems.com/keg-washers/manual-keg-washers.html
The price is $6750. Automated systems are much more, but will save time.
It sounds like you are trying to start a packaging brewery?
What I've learned about opening a brewery:
-Take your estimated start up costs and double them, also double the expected time it will take to actually get licensed and operating.
-You should have another 30% of your build costs available for working capitol.
-Whatever it takes to keep you and your household solvent for a year, multiply that times 3, you'll need that in savings because any profits from the business in the first three years will need to go towards expansion if you are going to be successful.
If your are putting in 30bbl tanks, you probably know all this, and already have a good chunk of money invested.
If you are going to name your brewery Lovelady Brew, You're too late, there's already a Lovelady brewery going up in Henderson, NV.
Good luck with the project, can you post some pictures and give some more details?