I have a used but decent clean tested beige Dell AT101 for sale for $8 + shipping.
My wife is after me to clean out the house, and so I need to get it out the door.
This one is very clean, and has seen some moderate use, but is in good condition and the switches operate as they should. I bought it used and cleaned it thoroughly but have not done any soldering or modifications to it.
There is a small mark in the case above F10, it almost looks melted, and the label over the LEDs has developed a wrinkle. I tried to show these flaws in the last photo. The spacebar is slightly yellowed, I have not Retro-brited it but that would probably take care of it.
$27 shipped domestic via Priority Mail.