Yes, Tice did go out of business years ago. I'm not familiar with their latest offerings, but I have 2 Power Blocks and one Titan energy storage system (see my classified in Accessories for more information). I have the manuals for my Power Blocks, the original. I don't know how different they are from the 3, but I could scan one of them and email it to you if you think it would help you with your version 3.
Ed
Ed