Looking for a 5.3L Vortec Chevy Motor

[AZHunter11]

The motor in my 2003 Silverado locked up yesterday, so I'm in need of a replacement. Any suggestions where I might find a used or rebuilt motor for a reasonable price would be greatly appreciated. Due to time and space constraints, I may look for someone to do the swap for me, so let me know if you have any referrals. I figured this would be a much better starting point than picking up a motor from Craigslist or a junk yard. Thanks for reading.

[Couzer]

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