Something else that people need to keep in mind is that builders charge more for parts simply because they're trying to make a few bucks. Actually it's not even a matter of making money, but being compensated for having bought, stored and handled these items in the first place. Builders may very well get a motor or any other part at a certain price, but their paying shipping, handling charges, custom fees, packaging, etc. Plus their time...either that or they are paying someone else to take care of these things. No one is in this to take a loss, if they are they won't be around for very long.