1) I believe whoever owns the box gets the one time lifetime transfer provided that the transfer offer hasn't already been used.
What I would probably do is go ahead and buy a Premiere and do the lifetime transfer myself, then sell that Premiere for a profit.
2) I think the DVD units with Tivo Basic are worth something
as long as they are functional. If anything someone could use them for the spare parts or the software image.
3) I would say these (if still in working condition) may be worth something to somebody just for spare parts.
Who knows? Offer them up for sale here in the TCF e-bay auction central forum
You might not get any bites, but you can at least say you tried.
Edit just to note: It's a shame that the new Direct TV Tivo has been castrated. I understand your decision.