I am currently seriously working on parts sources for 4 more T4 amplifiers, perhaps 5. The long lead time is for the metal fabricator. There are two amps in progress right now that are already reserved. After that, I am out of any casework, except that Doug just sent me plenty of wood. The metal fabricator (SwiftAtlanta) is working on a new quote for me as I type this. So assuming that goes well, I expect the T4 will be available again in a couple of months.