I have a number of connections who decomission old servers as their job. Getting the ram will be easy but the matched CPU's might take a few weeks more.
The fun thing about my network is that I have a tape library hanging off it. Its capacity is 20tb and basically all you do is sync local folders with the cached volume on the server once a week so I no longer worry about file loss in cases like this. I've actually reduced my current system's local disk capacity from 2.3tb to 500gb because of it. Things like SSD's are suddenly a lot more economical for me. Also, considering the new mac pro is a goddamn trashcan I'm totally content maxing this out and using it the next five years for a daily driver.