Do you buy parts?

I have replaced the main board once but I am not going to do that again. I've removed the hard drive for the last time and wanted to know if you are interested in buying the other components. I put it completely back together just without the hard disk inside. The screen, the battery, the keyboard, the case.... everything else is in great condition. It will boot and run for weeks and then will not boot up without the "please recycle power" screen. The last time it happened a couple years ago, I was told it was the main board and replaced it and the problem went away. This time, I'm just going to part it out and wanted to know if you buy parts.