So you want to fund giving away refurbished computers? Sell the best ones. Selling one for $250 will fund reimaging / reconfiguring 10 others. Sell one for $125, that will probably cover your costs of five giveaways.
"If am coerced into giving you evidence
That's the legal distinction. You CAN be forced to hand over evidence. You can't be forced to testify. If the cops have evidence that something I have is evidence of a crime, they can get a court order and take possession of that evidence.
The current ruling is that the files are evidence, so he can be forced to hand them over. Before any drive was decrypted, it hadn't been proven that the he COULD decrypt the drives. Maybe he bought them used and the previous owner encrypted them. The judge's earlier ruling was that he couldn't be forced to SAY "I can decrypt those files (they are mine). Giving up the key would be equalivent to testifying that the files were his. That would have been testimony and therefore protected under the fifth amendment.
Now that the judge is satisfied it's proven that the encrypted drives ARE his, the big question is "what is on the drive" and that's a question of evidence, not testimony. As evidence, it's not protected by the fifth amendment protection against TESTIFYING against useful.
Just go with the flow control, roll with the crunches, and, when you get a prompt, type like hell.