I wish this were a possibility for DIYers, but it just won't happen because the support needed for something like this would be insane, and someone would probably electrocute themselves. Honestly, I am still amazed companies like Ted Webber can even make guitar Tube Amplifier kits, even though they are much less complicated than a pin. Even though they assume no liability for any bodily harm, I've seen that circumvented in lawsuits time and time again. And working with +600v filter caps is not something for a first-time builder to be doing, yet on their forum page you see people that haven't ever picked up a soldering iron trying to build these. Scary stuff.