The required training rule in Washington is ridiculous. I think the schools must have lobbied for this.
The rule is you need 160 hours of class and on the wheel training, so basically 4 weeks. And they charge $3,000 and up for this.
Class A 160 total hours, including at least:
40 hours of classroom instruction
18 hours of street driving training
16 hours of training in backing maneuvers
16 hours of proficiency development
70 hours of combined lab training, range training and observation
I know a few guys that rushed to get their CDL's a couple of years ago or so before this rule went into effect.
Now where are you located, and what do you do for work? Something unrelated to this, and you are a weekend warrior with your equipment.
One way around this if you know someone that runs heavy trucks. See if they can employ you part time and train you, then they can sign off on the education requirements.
See this page at Washington DOL about exempt Employer certified drivers.
http://www.dol.wa.gov/driverslicense/cdltrainreq.html
And another sneaky way that a couple of people have done. Not sure where you are in Eastern Washington, but are you close to the Oregon border. If you know someone in Oregon, use their address and get a Oregon drivers license for a year. You will still have to pass the general knowledge test and pass the drive test which will include the walk around, pre trip inspection, etc. After a year get your Washington license back and you will have a CDL in Washington without having to do any training or tests.
See this page about transferring CDL from other state to Washington.
http://www.dol.wa.gov/driverslicense/cdltransfer.html